Volt

DTC P1762

The ECM monitors the state of the drive mode switch signal message from the body control module (BCM), over the serial data circuits. The ECM uses this message to determine the following driver selected mode of operation:

The propulsion system is active.

The ECM has detected a drive mode signal rolling count error for 0.8 seconds.

DTC P1762 is a Type C DTC.

DTC P1762 is a Type C DTC.

When attempting to set ECM serial data DTCs, run the vehicle in propulsion system active mode for at least 1 minute, and then shut the vehicle off for 30 seconds. Following this procedure will allow for a complete ECM shutdown.

Schematic Reference

Automatic Transmission Controls Schematics

Connector End View Reference

Component Connector End Views

Electrical Information Reference

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Scan Tool Reference

Control Module References for scan tool information.

Run the vehicle in propulsion system active mode for 1 minute, then vehicle OFF for 30 seconds.

1. Verify DTC P1824, P182A-P182F, P1838, or P1839 is not set.

⇒	If any of the DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle .

2. If the DTC is set, program the K20 ECM. If the DTC resets, replace the K20 ECM.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for ECM replacement, programming and setup.