What does code P1692 mean?

Q: What does code P1692 mean?

Coolant Gauge Circuit Voltage High. P1692 on a GM vehicle means the instrument cluster or body control module has detected an abnormally high voltage on the coolant temperature gauge circuit, which is the signal wire that drives the temperature needle or digital display. The computer is not reporting an engine coolant temperature sensor fault itself; it is flagging that the gauge circuit voltage is above the expected range, typically because the wire is shorted to voltage or the gauge motor circuit is open.

DTC codes / GM codes / P1692

P1692 · GMCoolant Gauge Circuit Voltage High

P1692 on a GM vehicle means the instrument cluster or body control module has detected an abnormally high voltage on the coolant temperature gauge circuit, which is the signal wire that drives the temperature needle or digital display. The computer is not reporting an engine coolant temperature sensor fault itself; it is flagging that the gauge circuit voltage is above the expected range, typically because the wire is shorted to voltage or the gauge motor circuit is open.

SystemPowertrain

Code typeGM specific

SeverityLow

Fix difficultyIntermediate

AreaComputer and output circuits

Guidance is general and written for GM vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.