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U11B3






U11B3- LOST HYBRID ACTUAL AXLE TORQUE MESSAGE - HEV





For a complete wiring diagram, refer to the Wiring Information Electrical Diagrams.

Theory of Operation

The Hybrid Actual Axle Torque Message is a direct input to the Hybrid Control Processor (HCP). The HCP sends the Powertrain Control Module (PCM) the actual axle torque message over the dedicated CAN bus.

- When Monitored:
Ignition on.

- Set Condition:
The PCM doesn't receive the Hybrid Actual Axle Torque Message over the dedicated CAN bus from the HCP. The circuit is continuously monitored. One trip fault.





WARNING: On vehicles equipped with the high voltage system, you must thoroughly read and follow all High Voltage Safety procedures. In addition, before performing any diagnostic or service procedure near a high voltage component, you must perform the High Voltage Power Down. Failure to follow these instructions may result in possible serious or fatal injury

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Pre-Diagnostic Troubleshooting Procedure.

1. ACTIVE DTC
1. Ignition on, engine not running.
2. With the scan tool, select View DTCs.

Is the DTC Active at this time?

Yes

- Go To 2

No

- Perform the INTERMITTENT CONDITION diagnostic procedure. Intermittent Condition Test.

2. U1817- LOST COMMUNICATION WITH HYBRID POWERTRAIN CONTROL MODULE ON D- PT ALSO ACTIVE
1. With the scan tool read DTCs.

Is the U1817- LOST COMMUNICATION WITH HYBRID POWERTRAIN CONTROL MODULE ON D- PT also set?

Yes

- Follow the diagnostics for U1817- Lost Communication with Hybrid Powertrain Control Module on D- PT
- Perform the POWERTRAIN VERIFICATION TEST. Powertrain Verification Test.

No

- Replace and program the Powertrain Control Module.
- Perform the POWERTRAIN VERIFICATION TEST. Powertrain Verification Test.