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General Motors Trouble Codes P1700-P1899


Diagnostic Trouble Code numbers are read by plugging a code reader or scan tool into the vehicle diagnostic connector (usually located under the instrument panel near the steering column) that can read vehicle manufacturer enhanced or P1 c odes (not just generic or P0 codes). The presence of a code will turn on the Check Engine Light. The light will remain on until the code has been erased. The code number does not tell you which part has failed. It only indicates a possible fault has been detected in the circuit, system or sensor described. Further testing is usually required to isolate the fault BEFORE repairs are made.

For vehicle specific diagnostic charts and vehicle specific repair information, refer to a service manual, or get a subscription to the AC Delco Tech Info website.

The following is a partial listing of common General Motors specific "P1" enhanced OBD II fault codes:

GM Trouble Code List P1700-P1899

NOTE: For some code numbers, there may be more than one definition because the same number may be used for different faults on different model years or models.

P1700....Malfunction Indicator Lamp requested by trans control module

P1701....Malfunction Indicator Lamp request circuit

P1740....Torque control/management request circuit

P1760....Transmission Control Module supply voltage interrupted

P1780....Park/Neutral Position Switch circuit

P1781....Engine torque signal circuit

P1792....ECM to Transmission Control Module engine coolant signal

P1800....ECM to Transmission Control Module engine coolant signal

P1810....ATF pressure manual valve powition switch malfunction

P1811....Long shift and maximum adaptation limit reached

P1812....TOT condition

P1814....Torque converter clutch (TCC) overstress

P1819....Transmission range switch out of range, possible no start

P1820....Transmission range switch A voltage low

P1822....Transmission range switch B voltage high

P1823....Transmission range switch P voltage low

P1825....Transmission range switch A, B, C & P signals invalid

P1826....Transmission range switch C voltage high

P1835....Kickdown Switch circuit

P1842....1-2 Shift Solenoid circuit low input

P1843....1-2 Shift Solenoid circuit high input

P1845....2-3 Shift Solenoid circuit low input

P1847....2-3Shift Solenoid circuit high input

P1850....Brake Band Aply Solenoid

P1860....Torque Converter Clutch (TCC) PWM Solenoid circuit

P1864....TCC Enable Solenoid circuit

P1868....Transmission Fluid life

P1870....Transmission component slipping

P1873....Oxygen sensor bank 2 sensor 2 crosscounts

P1874....Oxygen sensor bank 1 sensor 3 crosscounts

P1875....4WD Low Switch circuit electrical

P1886....Transaxle Shift, Timing Solenoid performance

P1887....TCC Release Switch malfunction

P1890....Throttle Position signal input

P1891....Throttle position sensor circuit signal low

P1892....Throttle position sensor circuit signal high

P1895....Engine torque delivered circuit

Click Here for List of GM Codes P1000 to P1299

Click Here for List of GM Codes P1300 to P1499

Click Here for List of GM Codes P1500 to P1699

Click here for Sensor and PCM related articles.

Click here for Transmission articles.

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