Code C1650: CVRSS Control Module Fault
- Perform CVRSS system check. See CVRSS SYSTEM CHECK under DIAGNOSIS & TESTING. After performing CVRSS system check, go to next step.
- If Code C1650 is displayed as current, go to step 5 . If Code C1650 is not displayed as current, go to next step.
- Clear codes. Wait 30 seconds, and then display CVRSS codes. If Code C1650 is set, go to step 5 . If Code C1650 is not set, go to next step.
- If vehicle has been previously serviced for Code C1650, go to next step. If vehicle has not been previously serviced for Code C1650, perform CVRSS SYSTEM CHECK .
- Turn ignition off. Replace CVRSS control module. Reinstall/reconnect all components/connectors. Install scan tool. Turn ignition on, with engine off. Calibrate NEW CVRSS control module. See CALIBRATING CVRSS CONTROL MODULE under ADJUSTMENTS.