Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 713 (ANTI-LOCK BRAKE SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDIAGNOSTIC TROUBLE CODE (DTC) LIST
1999 GMC Forward Control 5.7 R, Automatic
Diagnostic Trouble Code (DTC) List
1999 GMC Forward Control 5.7 R, AutomaticSECTION Diagnostic Trouble Code (DTC) List
WARNING: This page is about a different car, the 2002 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC TROUBLE CODE (DTC) DEFINITION
| DTC | Description |
|---|---|
| C0035 | LF Wheel Speed Circuit Malfunction |
| C0040 | RF Wheel Speed Circuit Malfunction |
| C0041 | RF Wheel Speed Sensor Circuit Range/Performance (EBCM) |
| C0045 | LR Wheel Speed Circuit Malfunction |
| C0046 | LR Wheel Speed Sensor Circuit Range/Performance (EBCM) |
| C0050 | RR Wheel Speed Circuit Malfunction |
| C0051 | LF Wheel Speed Sensor Circuit |
| C0060 | LF ABS Solenoid #1 Circuit Malfunction |
| C0065 | LF ABS Solenoid #2 Circuit Malfunction |
| C0070 | RF ABS Solenoid #1 Circuit Malfunction |
| C0075 | RF ABS Solenoid #2 Circuit Malfunction |
| C0080 | LR ABS Solenoid #1 Circuit Malfunction |
| C0085 | LR ABS Solenoid #2 Circuit Malfunction |
| C0090 | RR ABS Solenoid #1 Circuit Malfunction |
| C0095 | RR ABS Solenoid #2 Circuit Malfunction |
| C0110 | Pump Motor Circuit Malfunction |
| C0121 | Valve Relay Circuit Malfunction |
| C0141 | Left TCS Solenoid #1 Circuit Malfunction |
| C0146 | Left TCS Solenoid #2 Circuit Malfunction |
| C0151 | Right TCS Solenoid #1 Circuit Malfunction |
| C0156 | Right TCS Solenoid #2 Circuit Malfunction |
| C0161 | ABS/TCS Brake Switch Circuit Malfunction |
| C0235 | Rear Wheel Speed Signal Circuit Open |
| C0236 | Rear Wheel Speed Signal Circuit Missing |
| C0237 | Rear Wheel Speed Signal Erratic |
| C0240 | PCM Traction Control Not Allowed (ETS) |
| C0241 | EBCM Control Valve Circuit |
| C0244 | PWM Delivered Torque Malfunction |
| C0245 | Wheel Speed Sensor Frequency Error |
| C0550 | ECU Malfunction - internal write/checksum malfunction |
| C0896 | Electronic Suspension Control (ESC) voltage is outside the normal range of 9-15.5 volts |
| P1504 | Vehicle Speed Output Circuit |
| P1571 | TCS PWM Circuit No Frequency |
| P1689 | Traction Control Delivered Torque Control Circuit |
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.