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.