Pinpoint Test S : P0A50:92
- NOTE: The Inverter System Controller (ISC) is referred to as the SOBDMC (Secondary On-Board Diagnostic Control Module C) in the scan tool.
Normal Operation and Fault Conditions
REFER to: Electric Powertrain Control - System Operation and Component Description .
DTC Fault Trigger Conditions
DTC Description Fault Trigger Condition SOBDMC P0A50:92 Generator Position Sensor Circuit Overspeed: Performance Or Incorrect Operation This DTC sets when the generator speed is above the calibrated threshold for a period of time. Possible Sources
- ABS system issues
- Excessive engine torque (aftermarket modifications)
- Transmission concern
- S1 READ THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)NOTE: Wiring overlays or repinning of circuits are NOT appropriate for DTC P0A50 due to risk of hardware damage.NOTE: If ABS braking is disabled then this DTC is expected to set during aggressive braking.
- Using a diagnostic scan tool, retrieve the ABS module DTCs.
Are any DTCs present?
Yes DIAGNOSE all ABS module DTCs. Refer to ABS GUIDED ROUTINE No GO to S2 - S2 CHECK FOR INVERTER SYSTEM CONTROLLER (ISC) DIAGNOSTIC TROUBLE CODES (DTCS)
- Ignition ON.
- CLEAR the Inverter System Controller (ISC) DTCs.
- Using a diagnostic scan tool, run the Inverter System Controller (ISC) self-test.
Is DTC P0A50 the only DTC present?
Yes GO to S3 No DIAGNOSE all other Inverter System Controller (ISC) DTCs. REFER to Diagnostic Trouble Code (DTC) Chart . - S3 TEST DRIVE VEHICLE
- Test drive the vehicle.
Was the concern duplicated?
Yes INSTALL a new Transmission. REFER to: Transmission . CLEAR the Inverter System Controller (ISC) DTCs. REPEAT the self-test. No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.