Power Steering Control Module

POWER STEERING CONTROL MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC	Description	Action
B1317	Battery Voltage High	See PINPOINT TEST 1: DTC B1317 AND B1318 - BATTERY VOLTAGE HIGH AND BATTERY VOLTAGE LOW .
B1318	Battery Voltage Low	See PINPOINT TEST 1: DTC B1317 AND B1318 - BATTERY VOLTAGE HIGH AND BATTERY VOLTAGE LOW .
B1342	ECU is Faulted	INSTALL a new steering column. See STEERING COLUMN REMOVAL/INSTALLATION . REPEAT the self-test.
B2277	Electric Power Steering Motor Malfunction	INSTALL a new steering column. See STEERING COLUMN REMOVAL/INSTALLATION . REPEAT the self-test.
B2278	Steering Shaft Torque Sensor Malfunction	INSTALL a new steering column. See STEERING COLUMN REMOVAL/INSTALLATION . REPEAT the self-test.
B2477	Module Configuration Failure	CONFIGURE the power steering control module. See MODULE CONFIGURATION . CLEAR the DTCs. REPEAT the self-test. If DTC B2477 is retrieved again, INSTALL a new steering column. See STEERING COLUMN REMOVAL/INSTALLATION . REPEAT the self-test.
B227B	Steering Shaft Position Sensor Malfunction	INSTALL a new steering column. See STEERING COLUMN REMOVAL/INSTALLATION . REPEAT the self-test.
C195C	Electronic Power Assist Limited Operation Mode Detected	GO to PINPOINT TEST 4: POOR RETURNABILITY/STICKY STEERING AND STEERING HAS A LACK OF ASSIST OR INCONSISTENT ASSIST AND DTC C195C
C2000	Steering Angle Sensor Not Calibrated	CALIBRATE the steering wheel position sensor, FOLLOW the directions on the scan tool for Electronic Stability Program (ESP) sensor calibration, CLEAR the DTCs. REPEAT the self-test. If DTC C2000 is retrieved again, INSTALL a new steering column. See STEERING COLUMN REMOVAL/INSTALLATION , REPEAT the self-test.
U0100	Lost Communication With ECM/PCM	REPAIR all other DTCs first. If DTC U0100 is still present, see PINPOINT TEST 1: THE PCM DOES NOT RESPOND TO THE SCAN TOOL OR NO HIGH SPEED CONTROLLER AREA NETWORK (HS-CAN) COMMUNICATION to diagnose the HS-CAN bus.
U0101	Lost Communication With TCM	REPAIR all other DTCs first If DTC U0101 is still present, SEE COMMUNICATIONS NETWORK TROUBLESHOOTING to diagnose the HS-CAN bus.
U0121	Lost Communication With TCM	REPAIR all other DTCs first If DTC U0121 is still present, SEE COMMUNICATIONS NETWORK TROUBLESHOOTING to diagnose the HS-CAN bus.
U0155	Lost Communication With Instrument Panel Cluster	REPAIR all other DTCs first. If DTC U0155 is still present, see PINPOINT TEST 4: THE INSTRUMENT CLUSTER DOES NOT RESPOND TO THE SCAN TOOL to diagnose the HS-CAN bus.
U0402	Invalid Data Received from TCM	This DTC indicates that the PSCM has received an "invalid data" message from the TCM. The TCM is part of the PCM. RETRIEVE and RECORD all DTCs from the PCM. REFER to the ENGINE CONTROLS - ON-BOARD DIAGNOSTICS article to diagnose the DTCs.
U0415	Invalid Data From ABS	VERIFY the correct PSCM configuration. VERIFY that the correct Vehicle Identification Number (VIN) is programmed to the PCM. CARRY OUT the PCM self-test, RETRIEVE and RECORD any DTCs. See DTC INDEX - PCM .
U2023	Fault Received From External Node	One or more modules are reporting a DTC. RETRIEVE DTCs from all other modules. If no DTCs are present, see PINPOINT TEST 1: THE PCM DOES NOT RESPOND TO THE SCAN TOOL OR NO HIGH SPEED CONTROLLER AREA NETWORK (HS-CAN) COMMUNICATION to diagnose the HS-CAN bus.
U2499	ECU Overheat Protection	The PSCM uses a thermistor to monitor the internal temperature of the EPAS gear. This DTC 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. DIAGNOSE all other PSCM DTCs before diagnosing DTC U2499. If no other DTCs are present, ADVISE the customer that high ambient temperatures and/or heavy loads on the EPAS system causes this DTC to set, resulting in higher than usual steering effort. A heavy load is defined as multiple parking lot maneuvers over a short duration of time, possibly with low tire pressure, or towing for long distances followed by multiple parking maneuvers.