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REAR AXLE – Troubleshooting <AYC> 27-10 Code No. 31: Steer sensor (ST-1, ST-2, ST-N) system Probable cause This code is output when any of the steer sensors ST-1, ST-2, and ST-N is open-circuited D Defective steer sensor D Defective harness or connector D Defective AYC-ECU OK Replace the steer sensor. NG Check the harness between steer sen- NG Repair NG Check and repair the harness between OK Check the trouble symptom. OK Check the trouble symptom. OK Check the following connectors: NG Repair NG: Voltage remains at 4 V or more. Measure at B-98 steer sensor connec- D Disconnect the connector and D Continuity across 3 and body NG Check the following connectors: NG Repair NG Replace AYC-ECU. OK Check the trouble symptom. Measure at B-95 AYC-ECU connector. D Connector connected. D Ignition switch: ON D Voltage across 4/5/17 and body ground. 3 V and about 0.5 V when the steering OK Check the following connector: NG Repair NG: Voltage alternates between 4 V or NG: Voltage remains Code No. 32: Steer sensor (ST-N) system Probable cause This code is output when the steering wheel is considered to be turned 40 _ or more as determined with ST-1 and ST-2 with ST-N ON (LOW voltage). D Defective steer sensor D Defective harness or connector D Defective AYC-ECU OK Replace the steer sensor. NG Check the harness between steer sen- NG Repair OK Replace AYC-ECU. NG Replace AYC-ECU. OK Check the trouble symptom. OK Check the trouble symptom. NG Measure at B-95 AYC-ECU connector. D Disconnect the connector and D Ignition switch: ON D Turn steering wheel about 90 _ in either direction from the straight- D Voltage across 17 and body NG Check the following connectors: NG Repair Measure at B-95 AYC-ECU connector. D Connector connected. D Ignition switch: ON D Turn steering wheel about 90 _ in either direction from the straight- D Voltage across 17 and body about 0.5 V or less to about OK Check the following connector: NG Repair |