Diagnostic Aids
When these DTCs are set the PSCM will remove steering assist and enter manual steering mode. Message center displays STEERING LOSS STOP SAFELY.
DTC U3000:4B alone does not indicate a fault in the PSCM. It indicates an over-temperature condition due to ambient conditions and/or a heavy load on the EPAS system. A heavy load is defined as multiple parking lot maneuvers over a short duration of time with low tire pressure or towing for long distances followed by multiple parking maneuvers. The presence of DTC U3000:4B will prevent the active park assist system (if equipped) from activating. If set during an active park assist event, the event will be terminated and the active park assist system will deactivate.
| Failure | Action |
|---|---|
| 42 | CLEAR the DTC and REPEAT the self-test. If the DTC returns, INSTALL a new EPAS gear. REFER to Steering Gear . |
| 46 | GO to PINPOINT TEST B |
| 49 | GO to PINPOINT TEST B |
| 53 | INSTALL a new EPAS gear. REFER to Steering Gear . TEST the system for normal operation. |
| 56 | ADDRESS all other PSCM DTCs before progressing. If no other DTCs are present CLEAR this DTC and CYCLE the ignition OFF and ON. REPEAT self-test. |
| 96 | GO to PINPOINT TEST C |
| 4B | DIAGNOSE all other PSCM DTCs before addressing this concern. If no other DTCs are present, CHECK and ADJUST the tire pressures as necessary. INSPECT the EPAS heat shield for damage/correct installation and REPAIR as necessary. If the heat shield is undamaged/correctly installed, allow the vehicle to cool down and CLEAR the DTC. |