GM Service Manual Online
For 1990-2009 cars only

DTC

Definition

C1650

ESC Module Malfunction

C1658

EEPROM Calibration Malfunction

C1710

LF Shock Absorber Solenoid (Short to Voltage)

C1711

LF Shock Absorber Solenoid (Short to Ground)

C1712

LF Shock Absorber Solenoid (Open Circuit)

C1715

RF Shock Absorber Solenoid (Short to Voltage)

C1716

RF Shock Absorber Solenoid (Short to Ground)

C1717

RF Shock Absorber Solenoid (Open Circuit)

C1720

LR Shock Absorber Solenoid (Short to Voltage)

C1721

LR Shock Absorber Solenoid (Short to Ground)

C1722

LR Shock Absorber Solenoid (Open Circuit)

C1725

RR Shock Absorber Solenoid (Short to Voltage)

C1726

RR Shock Absorber Solenoid (Short to Ground)

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 Ground)

C1788

RTD Control Relay Circuit (Short to Voltage)

C1790

Ride Control Switch (Out of Range)

C1791

Ride Control Switch (Contact Malfunction)