C5 Repair Information

On this page you will find C5 Repair info and interesting facts for the following.
Corvette Headlight Motor Repair
LS1, LS2, LS3, LS6 Head Removal
C5 DTC (Diagnostic Trouble Code) list
C5 Resetting Tire Pressure Sensors
Reprogram Keyless Remote
Pull Key Message
C5 Corvette Interesting Details
Keep ahead of the game with our informative
C5 Owners & Buyers Guide, Torques Specs & Storage Information

C5 Repair Headlight Motor

Corvette C5 Headlamp Motor Repair

LS1, LS2, LS3, LS6 Head Removal

LS3 Head Removal - Southern Performance Systems - The best bloopers are here

C5 DTC Reading Procedure & List

Here is an overview of the C5 Repair procedures and terms used for resetting codes.

To display the C5 Repair diagnostic trouble codes for all modules that transmit them.
The Diagnostic Display Mode is entered with the following procedure:
1) Turn on the ignition but don't start the engine.
2) Press the RESET button to turn off any warning messages
3) Press and hold OPTIONS
4) While holding OPTIONS, press FUEL four times within a 10-second period.

NOTE!! Only reset the codes IF you want to it's NOT necessary to do this. Clearing a code does not repair a problem.
You are simply erasing the evidence of it in the module's memory. Once you have the codes, the next question is: What to do with the information? First, consult the factory service manual. Any serious C5 Do-It-Yourself owner should invest in the Corvette Service Manual of the appropriate model year. Do a search on ebay for CD versions as this is what I did. I hope to have a reference center on this site to help you find that info.

C5 Repair Turn the key to the ON position, but don't start the engine. Clear any existing messages by pressing the RESET button. Hold the OPTIONS button down, and press the FUEL button 4 times. This will get you into the CODES section of the DIC. The computer will automatically display all the codes your car has created. It will cycle through each code every 3 seconds. Any code that ends in H is a history code (something that has occurred in the past) but is fine now. Once the computer has finished going through all of it's codes, press RESET to enter Manual Configuration mode. It should start with a module and show NO CODES or # CODES.

To optionally reset the codes once in manual mode, press and hold RESET until it displays NO CODES Press OPTIONS to go to the next module. Repeat the steps in this paragraph until you have reset the codes in all the computer modules.

NOTE!! Only reset the codes IF you want to - it is NOT necessary to do this.

Powertrain Control Module (PCM)
Traction Control System (TCS), Combines traction control &
ABS and on cars built after 1997, the optional Active Handling System
Real Time Damping (RTD)
Body Control Module (BCM)
Instrument Panel Cluster (IPC)
Heating‑ventilation‑air conditioning (HVAC)
Left Door Control Module (LDCM)
Right Door Control Module (RDCM)
Seat Control Module (SCM)
Remote Function Actuation (RFA).

C5 Repair Info and Codes
10‑PCM ‑ Powertrain Control Module 

P0101 Mass Air Flow (MAF) System Performance
P0102 Mass Air Flow (MAF) Sensor Circuit Low Frequency
P0103 Mass Air Flow (MAF) Sensor Circuit High Frequency
P0107 Manifold Pressure (MAP) Sensor Circuit Low Voltage
P0108 Manifold Pressure (MAP) Sensor Circuit High Voltage
P0112 Intake Air Temp (IAT) Sensor Circuit Low Voltage
P0113 Intake Air Temp (IAT) Sensor Circuit High Voltage
P0117 Engine Coolant Temp (ECT) Sensor Low Voltage
P0118 Engine Coolant Temp (ECT) Sensor High Voltage
P0118 Engine Coolant Temperature (ECT) Excessive Time to Closed Loop Fuel
P0131 Heated Oxygen Sensor (HO2S) Circuit Low Voltage Bank 1 Sensor 1
P0132 Heated Oxygen Sensor (HO2S) Circuit High Voltage Bank 1 Sensor 1
P0133 Heated Oxygen Sensor (HO2S) Slow Response Bank 1 Sensor 1
P0134 Heated Oxygen Sensor (HO2S) Circuit Insufficient Activity Bank 1 Sensor 1

P0135 Heated Oxygen Sensor (HO2S) Heater Circuit Bank 1 Sensor 1
P0137 Heated Oxygen Sensor (HO2S) Circuit Low Voltage Bank 1 Sensor 2
P0138 Heated Oxygen Sensor (HO2S) Circuit High Voltage Bank 1 Sensor 2
P0140 Heated Oxygen Sensor (HO2S) Circuit Insufficient Activity Bank 1 Sensor 2

P0141 Heated Oxygen Sensor (HO2S) Heater Circuit Bank 1 Sensor 2
P0151 Heated Oxygen Sensor (HO2S) Circuit Low Voltage Bank 2 Sensor 1
P0152 Heated Oxygen Sensor (HO2S) Circuit High Voltage Bank 2 Sensor 1
P0153 Heated Oxygen Sensor (HO2S) Slow Response Bank 2 Sensor 1
P0154 Heated Oxygen Sensor (HO2S) Circuit Insufficient Activity Bank 2 Sensor 1

P0155 Heated Oxygen Sensor (HO2S) Heater Circuit Bank 2 Sensor 1
P0157 Heated Oxygen Sensor (HO2S) Circuit Low Voltage Bank 2 Sensor 2
P0158 Heated Oxygen Sensor (HO2S) Circuit High Voltage Bank 2 Sensor 2
P0160 Heated Oxygen Sensor (HO2S) Circuit Insufficient Activity Bank 2 Sensor 2

P0161 Heated Oxygen Sensor (HO2S) Heater Circuit Bank 2 Sensor 2
P0171 Fuel Trim System Lean Bank 1
P0172 Fuel Trim System Rich Bank 1
P0174 Fuel Trim System Lean Bank 2
P0175 Fuel Trim System Rich Bank 2
P0230 Fuel Pump Control Circuit
P0300 Engine Misfire Detected
P0325 Knock Sensor (KS) System
P0327 Knock Sensor (KS) Circuit Front
P0332 Knock Sensor (KS) Circuit Rear
P0335 CKP Sensor Circuit
P0336 CKP Sensor Circuit Performance
P0341 CMP Circuit Performance
P0342 CMP Sensor Circuit Low Voltage
P0343 CMP Sensor Circuit High Voltage
P0351 Ignition Control #1 Circuit
P0352 Ignition Control #2 Circuit
P0353 Ignition Control #3 Circuit
P0354 Ignition Control #4 Circuit
P0355 Ignition Control #5 Circuit
P0356 Ignition Control #6 Circuit
P0357 Ignition Control #7 Circuit
P0358 Ignition Control #8 Circuit
P0410 AIR System
P0412 AIR Solenoid Relay Control Circuit
P0418 AIR Pump Relay Control Circuit
P0420 TWC System Low Efficiency Bank 1
P0430 TWC System Low Efficiency Bank 2
P0441 EVAP System No Flow During Purge
P0461 Fuel Level Sensor 1 Circuit Performance
P0462 Fuel Level Sensor 1 Circuit Low Voltage
P0463 Fuel Level Sensor 1 Circuit High Voltage
P0480 FC Relay 1 Control Circuit
P0481 FC Relay 2 and 3 Control Circuit
P0500 VSS Circuit (M/T)
P0506 Idle Speed Low
P0507 Idle Speed High
P0522 Engine Oil Pressure Sensor Circuit Low Voltage
P0523 Engine Oil Pressure Sensor Circuit High Voltage
P0530 A/C Refrigerant Pressure Sensor Circuit
P0562 System Voltage Low
P0563 System Voltage High
P0567 Cruise Resume Circuit
P0568 Cruise Set Circuit <
P0571 Cruise Brake Switch Circuit (M/T)
P0601 PCM Memory
P0602 PCM Not Programmed
P0604 PCM RAM Performance
P0606 PCM Internal Communication Interrupted 
P0608 VSS Output Circuit 
P0650 MIL Control Circuit 
P0654 Engine Speed Output Circuit 
P0704 Clutch Switch Circuit (M/T) 
P0705 Transmission Range Switch Circuit (A/T) 
P0706 Transmission Range Switch Performance (A/T) 
P0801 Reverse Inhibit Solenoid Control Circuit (M/T) 
P0803 1‑4 Upshift Solenoid Control Circuit (M/T) 
P0804 1‑4 Upshift Lamp Control Circuit (M/T) 
P1111 Intake Air Temperature (IAT) Sensor Circuit Intermittent High Voltage 
P1112 Intake Air Temperature (IAT) Sensor Circuit Intermittent Low Voltage 
P1114 ECT Sensor Circuit Intermittent Low Voltage 
P1115 ECT Sensor Circuit Intermittent High Voltage 
P1120 TP Sensor 1 Circuit 
P1125 APP System 
P1133 Heated Oxygen Sensor (HO2S) Insufficient Switching Bank 1 Sensor 1 
P1134 Heated Oxygen Sensor (HO2S) Transition Time Ratio Bank 1 Sensor 1 
P1153 Heated Oxygen Sensor (HO2S) Insufficient Switching Bank 2 Sensor 1 
P1154 Heated Oxygen Sensor (HO2S) Transition Time Ratio Bank 2 Sensor 1 
P1220 TP Sensor 2 Circuit 
P1221 TP Sensors 1, 2 Performance 
P1258 Engine Coolant Over Temperature‑Fuel Disabled 
P1275 APP Sensor 1 Circuit 
P1276 APP Sensor 1 Circuit Performance 
P1280 APP Sensor 2 Circuit 
P1281 APP Sensor 2 Circuit Performance 
P1285 APP Sensor 3 Circuit 
P1286 APP Sensor 3 Circuit Performance 
P1380 EB (T) CM DTC Detected‑ Rough Road Data Unusable 
P1381 Misfire Detected ‑ No EB (T) CM/PCM Serial Data 
P1415 AIR System Bank 1 
P1416 AIR System Bank 2 
P1431 Fuel Level Sensor 2 Circuit Performance 
P1432 Fuel Level Sensor 2 Low Voltage 
P1433 Fuel Level Sensor 2 High Voltage 
P1441 Evaporative Emissions (EVAP) System Flow During Non‑Purge 
P1514 TAC System MAF Performance 
P1515 Command vs Actual Throttle Position Performance (PCM Module) 
P1516 Command vs Actual Throttle Position Performance (TAC Module) 
P1517 TAC Module Processor 
P1518 PCM to TAC Module Serial Data Circuit 
P1539 A/C Clutch Status Circuit High Voltage 
P1545 A/C Clutch Relay Control Circuit 
P1546 A/C Clutch Status Circuit Low Voltage 
P1571 ASR Desired Torque 
P1574 Stop Lamp Control Circuit 
P1575 Extended Travel Brake Switch Circuit High Voltage 
P1626 Theft Deterrent System Fuel Enable Circuit 
P1630 Theft Deterrent System PCM In Learn Mode 
P1631 Theft Deterrent System Password Incorrect 
P1635 5 Volt Reference #1 Circuit 
P1639 5 Volt Reference #2 Circuit 
P1644 Delivered Torque Output Circuit 
P1652 Powertrain Induced Chassis Pitch Output Circuit 

C5 Repair 
28‑TCS ‑ Traction Control System

C1214 Sol Valve Relay Contact or Coil CKT Open 
C1217 BPMV Pump Motor Relay Contact CKT Open 
C1221 LF Wheel Speed Sensor Input Signal is 0 
C1222 RF Wheel Speed Sensor Input Signal is 0 
C1223 LR Wheel Speed Sensor Input Signal is 0 
C1224 RR Wheel Speed Sensor Input Signal is 0 
C1225 RF Excessive Wheel Speed Variation 
C1226 LF Excessive Wheel Speed Variation 
C1227 LR Excessive Wheel Speed Variation 
C1228 RR Excessive Wheel Speed Variation 
C1232 LF Wheel Speed Circuit Open or Shorted 
C1233 RF Wheel Speed Circuit Open or Shorted 
C1234 LR Wheel Speed Circuit Open or Shorted 
C1235 RR Wheel Speed Circuit Open or Shorted 
C1236 Low System Supply Voltage 
C1237 High System Supply Voltage 
C1241 Magna Steer Circuit Malfunction 
C1242 BPMV Pump Motor Ground Circuit Open 
C1243 BPMV Pump Motor Stalled 
C1255 EBTCM Internal Malfunction 
CEBCM Internal Malfunction 
C1261 LF Inlet Valve Solenoid Malfunction 
C1262 LF Outlet Valve Solenoid Malfunction 
C1263 RF Inlet Valve Solenoid Malfunction 
C1264 RF Outlet Valve Solenoid Malfunction 
C1265 LR Inlet Valve Solenoid Malfunction 
C1266 LR Outlet Valve Solenoid Malfunction 
C1267 RR Inlet Valve Solenoid Malfunction 
C1268 RR Outlet Valve Solenoid Malfunction 
C1273 RF TCS Master Cyl Isolation Valve Malfunction 
C1274 RF TCS Prime Valve Malfunction 
C1276 Delivered Torque Signal CKT Malfunction 
C1277 Requested Torque Signal CKT Malfunction 
C1278 TCS Temporarily Inhibited By PCM 
C1281 Steering Sensor Uncorrelated Malfunction 
C1286 Steering Sensor Bias Malfunction 
C1287 Steering Sensor Rate Malfunction 
C1291 Open Brake Lamp Sw Contacts During Deccel 
C1293 DTC C1291/C1292 Set Curnt/Prev Ign Cylce 
C1294 Brake Lamp Switch Circuit Always Active 
C1295 Brake Lamp Switch Circuit Open 
U1016 Loss of Communications with PCM 
U1255 Generic Loss Communications 
U1300 Class 2 Circuit Shorted to Ground 
U1301 Class 2 Circuit Shorted to Battery 

C5 Repair 
38‑RTD ‑ Real Time Damping 

C1650 ESC Module Malfunction 
C1658 EEPROM Calibration Malfunction 
C1710 LF Shock Absorber Solenoid (Short to Voltage) 
C1711 LF Shock Absorber Solenoid (Short to GND) 
C1712 LF Shock Absorber Solenoid (Open Circuit) 
C1715 RF Shock Absorber Solenoid (Short to Voltage) 
C1716 RF Shock Absorber Solenoid (Short to GND) 
C1717 RF Shock Absorber Solenoid (Open Circuit) 
C1720 LR Shock Absorber Solenoid (Short to Voltage) 
C1721 LR Shock Absorber Solenoid (Short to GND) 
C1722 LR Shock Absorber Solenoid (Open Circuit) 
C1725 RR Shock Absorber Solenoid (Short to Voltage) 
C1726 RR Shock Absorber Solenoid (Short to GND) 
C1727 RR Shock Absorber Solenoid (Open Circuit) 
C1743 Loss of Vehicle Speed Signal 
C1760 LF Position Sensor (Out of Range) 
C1761 RF Position Sensor (Out of Range) 
C1762 LR Position Sensor (Out of Range) 
C1763 RR Position Sensor (Out of Range) 
C1768 Position Sensor Supply Malfunction (Overcurrent) 
C1780 Loss of Steering Position Signal 
C1786 RTD Control Relay Malfunction 
C1787 RTD Control Relay Circuit (Open or Short to GND) 
C1788 RTD Control Relay Circuit (Short to Voltage) 
C1790 Ride Control Switch (Out of Range) 
C1791 Ride Control Switch (Contact Malfunction) 

C5 Repair 
40‑BCM ‑Body Control Module 

B0432 Rear Defogger Relay Circuit 
B0433 Rear Defogger Relay Circuit 
B0502 RH DRL Relay Circuit 
B0503 RH DRL Relay Circuit 
B0507 LH DRL Relay Circuit 
B0508 LH DRL Relay Circuit 
B0605 BCM Internal Memory Function 
B0844 BCM Temporarily Inhibit ABS 
B2403 Front Fog Lamp Switch Circuit 
B2408 Rear Fog Lamp Switch Circuit 
B2482 Backup Lamp Relay Circuit 
B2483 Backup Lamp Relay Circuit 
B2527 Horn Relay Circuit 
B2528 Horn Relay Circuit 
B2573 Hatch Release Switch Circuit (Short to Voltage) 
B2578 RF Turn Signal Monitor Circuit (Short to Voltage) 
B2583 LF Turn Signal Monitor Circuit (Short to Voltage) 
B2587 Column Lock/Unlock Drive (A) 
B2588 Column Lock/Unlock Drive (A) 
B2592 Column Lock/Unlock Drive (B) 
B2583 Column Lock/Unlock Drive (B) 
B2597 Traction Control System Switch Circuit 
B2721 PASS‑Key Detection Circuit 
B2722 PASS‑Key Detection Circuit 
B2723 PASS‑Key Detection Circuit 
B2735 PASS‑Key Programming Mode Active 
U1016 Loss of Communications with PCM 
U1096 Loss of Communications with IPC 
U1255 Serial Data Line Malfunction 

C5 Repair 
60‑IPC ‑ Instrument Panel Cluster 

B0516 Speedometer Signal Circuit Malfunction 
B0521 Tachometer Signal Circuit Malfunction 
B1512 DIC Switch 1 Signal Short to GND "FUEL" 
B1517 DIC Switch 2 Signal Short to GND "GAGES" 
B1522 DIC Switch 3 Signal Short to GND "TRIP" 
B1527 DIC Switch 4 Signal Short to GND "OPTIONS" 
B1532 DIC Switch 5 Signal Short to GND "E/M" 
B1537 DIC Switch 6 Signal Short to GND "RESET" 
B1542 Oil Temperature Circuit Short to GND 
B1543 Oil Temperature Circuit Open 
U1016 Loss of Communications with PCM 
U1040 Loss of Communications with TCS 
U1056 Loss of Communications with RTD 
U1064 Loss of Communications with BCM 
U1128 Loss of Communications with Radio 
U1153 Loss of Communications with HVAC 
U1160 Loss of Communications with LDCM 
U1161 Loss of Communications with RDCM 
U1166 Loss of Communications with SCM 
U1176 Loss of Communications with RFA 
U1255 Serial Data Line Malfunction 

C5 Repair 
80‑Radio ‑ Radio Not Found 
99‑HVAC ‑ Heater, Ventilation, Air Conditioning  

B0332 Outside Air Temp Sensor Short to GND 
B0333 Outside Air Temp Sensor Open 
B0337 Inside Air Temp Sensor Short to GND 
B0338 Inside Air Temp Sensor Open 
B0348 Sunload Temperature Sensor Open 
B0361 Left Actuator Feedback Short to GND 
B0363 Left Actuator Feedback Open 
B0365 Right Actuator Feedback Short to GND 
B0367 Right Actuator Feedback Open 
B0441 Left Actuator Out of Range 
B0446 Right Actuator Out of Range 
B1016 Loss of Communications with PCM 
U1064 Loss of Communications with BCM 
U1096 Loss of Communications with IPC 
U1255 Serial Data Line Malfunction 

C5 Repair 
A0‑LDCM ‑ Left Door Control Module 

B2202 Left Window Up Switch Fault 
B2204 Left Window Down Switch Fault 
B2206 Right Window Up Switch Fault 
B2208 Right Window Down Switch Fault 
B2222 LT Mirror Select Switch Fault 
B2224 RT Mirror Select Switch Fault 
B2226 Mirror Right Switch Fault 
B2228 Mirror Left Switch Fault 
B2232 Mirror Up Switch Fault 
B2234 Mirror Down Switch Fault 
B2236 Left Door Lock Switch Fault 
B2238 Left Door Unlock Switch Fault 
B2242 Memory 1 Switch Fault 
B2244 Memory 2 Switch Fault 
B2252 Key Cylinder Switch Fault 
B2262 Horizontal Position Sensor Fit 
B2264 Vertical Position Sensor Fault 
B2272 Left Mirror Motor Fault 
B2274 Window Motor Fault 
B2276 Door Lock Motor/Mirror Heater Fit 
B2282 Battery #1 Fault 
B2284 Battery #2 Fault 
B2286 +5V Reference Fault 
U1064 Loss of Communications with BCM 
U1096 Loss of Communications with IPC 
U1255 Serial Data Line Malfunction 

C5 Repair 
A1‑RDCM ‑ Right Door Control Module 

B2203 Right Window Up Switch Fault 
B2205 Right Window Down Switch Fault 
B2237 Right Door Lock Switch Fault 
B2239 Right Door Un‑Lock Switch Fault 
B2253 Key Cylinder Switch Fault 
B2263 Horizontal Position Sensor Fit 
B2265 Horizontal Position Sensor Fault 
B2273 Right Mirror Motor Fault 
B2275 Window Motor Fault 
B2277 Door Lock Motor/Mirror Heater Fit 
B2283 Battery #1 Fault 
B2285 Battery #2 Fault 
B2287 +5V Reference Fault 
U1064 Loss of Communications with BCM 
U1096 Loss of Communications with IPC 
U1255 Serial Data Line Malfunction 

C5 Repair 
A6‑SCM ‑ Seat Control Module 

B0846 Battery 2 Out of Range 
B0851 Battery 1 Out of Range 
B2002 Fore/Aft Seat Motor Open or Short to GND 
B2007 Front Vertical Seat Motor Open or Shorted 
B2012 Rear Vertical Seat Motor Open or Shorted 
B2172 Seat Front Up Switch Shorted to GND 
B2177 Seat Front Down Switch Shorted to GND 
B2182 Seat Rear Up Switch Shorted to GND 
B2187 Seat Rear Down Switch Shorted to GND 
B2192 Seat Forward Switch Shorted to GND 
B2197 Seat Reverse Switch Shorted to GND 
B2605 Seat Front Vertical Position Sensor Failure 
B2606 Seat Rear Vertical Position Sensor Failure 
B2607 Seat Horizontal Position Sensor Failure 

C5 Repair 
B0‑RFA ‑ Remote Function Actuation 

B0605 Receiver Internal Memory Malfunction 
B2805 No Transmitters Programmed 
C2100 Left Front TPM Sensor Malfunction 
C2105 Right Front TPM Sensor Malfunction 
C2110 Right Rear TPM Sensor Malfunction 
C2115 Left Rear TPM Sensor Malfunction 
C2120 TPM System Malfunction (No Sensors Received) 
C2121 TPM System Programming Malfunction (No Sensors Programmed) 
U1000 Loss of Communication Undetermined 
U1016 Loss of Communication with PCM 
U1064 Loss of Communication with BCM 
U1096 Loss of Communication with IPC 
U1255 Serial Data Line Malfunction

Resetting Tire Pressure Sensors

C5 Repair:

1) Turn ignition on

2) Press "Reset" button in order to clear any IPC display warning messages

3) Press and release the "Options" button on the DIC to scroll through the display options until the IPC display is blank

4) Press and hold the DIC "Reset" button for 3 seconds

5) Press the "Options" button again until TIRE TRAINING message appears

6) Press "Reset" button until the IPC "Learn L Front Tire" message appears in order to begin the programming

7) Install the J41760 Tire Pressure Monitor (TPM) System Programming Tool (large magnet will do) over the left front valve stem

8) The horn will sound, indicating the left front TPM sensor is programmed (if this takes more than 15 seconds, pull magnet back and try again, it will give you three tries. Then you must start over)

9) When the horn sounds, proceed to program the next TPM sensor in the following order as directed by the IPC messages: -Learn R Front Tire -Learn R Rear Tire -Learn L Rear Tire

Programming can be canceled by turning ignition off, waiting 2 minutes with no sensors being learned, finishing all 4 wheels or through the DIC. If the programming is canceled with less than 4 sensors learned, it will only accept the codes programmed up to that point.

Resetting Tire Pressure Sensor Video

This video is for a C6 but the system is almost the same. You would have only minor differences in operation. Use this as a great reference.

Nifty Little Gadget for Deleting Tire Pressure System

This would be great if you have changed the tires on your Corvette for a track day event!

Reprogram Keyless Remote

C5 Repair
To recalibrate your C-5 Remote Keyless Entry Fob use the following steps:

1) Turn ignition on

2) Turn radio off

3) Press Driver Information Center (DIC) RESET button

4) Press OPTIONS button on the DIC until display is blank

5) Press and hold RESET button for 3 seconds

6) Press OPTIONS button until FOB TRAINING is displayed

7) Press RESET button to begin programming sequence.

8) Simultaneously press and hold LOCK and UNLOCK

buttons on first remote for 13 seconds until message

appears stating programming is complete. The computer

will ask to program second FOB. If you don't have a second

FOB follow on to step 9.

9) Turn ignition off and remove key for ignition.

10) Test remote or remotes

Pull Key Message

C5 Repair Symptom - Pull Key wait 10 seconds and/or Fuel Cuts off after 2 seconds when trying to move the car.

1) Turn on the ignition but don't start the engine.

2) Press the "RESET" button to turn off any warning messages

3) Press and hold "OPTIONS"

4) While holding "OPTIONS", press "FUEL" four times within a 10-second period.

Initially, on-board diagnostics go into an "Automatic Mode" which shows diagnostic codes in a pre-set sequence: PCM - TCS - RTD - BCM - IPC - RADIO - HVAC - LDCM - RDCM - SCM - RFA. All codes will be displayed for each module. If none are present in a given module, you will see "No More Codes" on the display.

To exit the diagnostic mode at any time, press "E/M". If you want to erase codes in a given module, press "RESET".

To reset the codes once in manual mode, press and hold "RESET" until it displays "NO CODES". Press "OPTIONS" to go to the next module. Repeat the steps until you have reset the codes in all the computer modules.

Key back off, remove fuse #25 and wait 10 minutes before re-installing it.

Install the fuse, bring key back to On and all messages should be cleared as well as the fuel cut-off. If you still have problems repeat the above except this time remove fuses #25 and #29 for 10 minutes. Repeat again and it should be good to go.

C5 Corvette Interesting Details

C5 Repair Secrets

1 The little yellow "helper light" on the bottom of the rear-view mirror that illuminates the shifter area

2 That you can put your key in the driver's door and turn it twice towards the front to unlock the passenger door and a third time to pop the trunk.

3 That you can pop the trunk and also pop the gas cap cover by pulling on metal lines hidden in the back.

4 The little slotted cover on the dash behind the steering wheel is where the inside air temperature sensor is located.

C5 Repair tips

5 All of the option codes are in the glove box.

6 Tire inflation recommended pressures are on the driver's door

7 The thing that looks like a little LED near the DIC buttons is a light sensor

8 The thing that looks like a little LED near the defroster vent is a UV sensor for determining A/C usage to compensate for the heating effect of the sun

9 The build sheet is in the front re-bar

10 If you leave your turn signal on, in about 1 minute it will start to ding (loud enough to hear over the stereo) to let you know you have old timers disease.

C5 Repair tips

11 You can reset the oil life by pumping the gas pedal 3 times (but not with the engine running)

12 Hold down the reset button while on one of the trip odometers and it changes that reading to the miles you've traveled since last starting the engine.

C5 Repair tips

13 Hold down the Active Handling button for 5 sec. to engage "Competitive Driving" on cars equipped with active handling (2000 and previous years must be stopped.)

14 If you pull the seatbelts all the way out while you're buckled in, they ratchet back in to hold you tighter into the seat.

15 Simply remove fuse #2 under the hood and your DRLs will be out permanently. Only thing affected is that when you unlock at night using the key fob your front turn signal lights and back up lights will not will not flash. Your front turn signals will operate normally, however.

C5 Repair tip 16 The side-view mirrors can twist both forward and backward, decreasing the chance of damage if struck.

17 There is a release opening with a flap to let air out of the car when the hatch is closed. It is located just above the driver side rear compartment, behind the carpet and on the side of the car. Not that it really works well.

18 Also you can ground your amp to a screw/bolt that holds the rear middle compartment to the frame.

C5 Repair tip

19 If you have a 6-speed car you can pop the trunk when the car is running by lifting the e-brake.

20 There is a spot on the driver side just out of the middle compartment under the carpet for the lug nut key. You should have a compartment on the drivers & passenger‚'s side (in the trunk) and a center compartment. On the left (drivers) side of the center compartment, on the left side where the center cover fits, there is an 'indent' that holds the wheel lock key.

21 If you turn on the headlights, then go to parking light position, the lamps remain up but the headlights are not left on.

22 If you have the passive entry feature: If you lock your keys in the car, wait a few minutes and then shake the car. That will unlock the car.

C5 Repair tip

23 HUD has a shift light for manuals.

24 You can easily shift the M6 trans up or down without the clutch if you match revs. (Not great for longevity, however.)

25 You can eject the cd from the in-dash player without turning on any power. Don't even need key in the ignition.

26 The cruise will disengage if you purposely make sharp side to side turns while cruising at say 60-80 mph.

27 When the engine is shut off, you can get the odometer reading by turning on the parking lights.

28 You can program setting #3 (both memory buttons at once) in the seat memory to run the seat back and steering wheel forward for getting in/out of the car with the engine running.

C5 Repair

29 If you hate DRLs you can pull the e-brake ONE click and they go off

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