Diagnostic Trouble Code Chart
HINT:
If any DTCs are displayed during the DTC check, inspect the circuit listed for those DTCs. For details of each DTC, refer to the service information indicated in the DTC chart.
POWER STEERING SYSTEM
| DTC Code | Detection Item | Trouble Area | Return-to-normal Condition | P/S Warning Light | Refer To |
|---|---|---|---|---|---|
| C1511 | Torque Sensor Circuit Malfunction | 1. Steering column assembly (Torque sensor) 2. Power steering ECU |
Ignition switch on (IG) again | ◦ | Refer to DTC C1511: Torque Sensor Circuit Malfunction; DTC C1512: Torque Sensor Circuit Malfunction; DTC C1513: Torque Sensor Circuit Malfunction; DTC C1514: Torque Sensor Power Supply Abnormal; DTC C1517: Torque Hold Abnormal |
| C1512 | Torque Sensor Circuit Malfunction | 1. Steering column assembly (Torque sensor) 2. Power steering ECU |
Ignition switch on (IG) again | ◦ | Refer to DTC C1511: Torque Sensor Circuit Malfunction; DTC C1512: Torque Sensor Circuit Malfunction; DTC C1513: Torque Sensor Circuit Malfunction; DTC C1514: Torque Sensor Power Supply Abnormal; DTC C1517: Torque Hold Abnormal |
| C1513 | Torque Sensor Circuit Malfunction | 1. Steering column assembly (Torque sensor) 2. Power steering ECU |
Ignition switch on (IG) again | ◦ | Refer to DTC C1511: Torque Sensor Circuit Malfunction; DTC C1512: Torque Sensor Circuit Malfunction; DTC C1513: Torque Sensor Circuit Malfunction; DTC C1514: Torque Sensor Power Supply Abnormal; DTC C1517: Torque Hold Abnormal |
| C1514 | Torque Sensor Power Supply Abnormal | 1. Steering column assembly (Torque sensor) 2. Power steering ECU |
Ignition switch on (IG) again | ◦ | Refer to DTC C1511: Torque Sensor Circuit Malfunction; DTC C1512: Torque Sensor Circuit Malfunction; DTC C1513: Torque Sensor Circuit Malfunction; DTC C1514: Torque Sensor Power Supply Abnormal; DTC C1517: Torque Hold Abnormal |
| C1515 | Torque Sensor Zero Point Adjustment Undone | - | After calibrating torque sensor zero point | ◦ | Refer to DTC C1515: Torque Sensor Zero Point Adjustment Undone |
| C1516 | Torque Sensor Zero Point Adjustment Incomplete | - | After calibrating torque sensor zero point normally | ◦ | Refer to DTC C1516: Torque Sensor Zero Point Adjustment Incomplete |
| C1517 | Torque Hold Abnormal | 1. Steering column assembly (Torque sensor) 2. Power steering ECU |
Ignition switch on (IG) again | ◦ | Refer to DTC C1511: Torque Sensor Circuit Malfunction; DTC C1512: Torque Sensor Circuit Malfunction; DTC C1513: Torque Sensor Circuit Malfunction; DTC C1514: Torque Sensor Power Supply Abnormal; DTC C1517: Torque Hold Abnormal |
| C1524 | Motor Circuit Malfunction | 1. Steering column assembly (Power steering motor) 2. Power steering ECU |
Ignition switch on (IG) again | ◦ | Refer to DTC C1524: Motor Circuit Malfunction; DTC C1555: Motor Relay Welding Failure |
| C1531 | ECU Malfunction | Power steering ECU | Ignition switch on (IG) again | ◦ | Refer to DTC C1531: ECU Malfunction; DTC C1532: ECU Malfunction; DTC C1533: ECU Malfunction; DTC C1534: ECU Malfunction; DTC C1535: ECU Malfunction |
| C1532 | ECU Malfunction | Power steering ECU | Ignition switch on (IG) again | ◦*1 | Refer to DTC C1531: ECU Malfunction; DTC C1532: ECU Malfunction; DTC C1533: ECU Malfunction; DTC C1534: ECU Malfunction; DTC C1535: ECU Malfunction |
| C1533 | ECU Malfunction | Power steering ECU | Ignition switch on (IG) again | ◦ | Refer to DTC C1531: ECU Malfunction; DTC C1532: ECU Malfunction; DTC C1533: ECU Malfunction; DTC C1534: ECU Malfunction; DTC C1535: ECU Malfunction |
| C1534 | ECU Malfunction | Power steering ECU | Ignition switch on (IG) again | ◦*1 | Refer to DTC C1531: ECU Malfunction; DTC C1532: ECU Malfunction; DTC C1533: ECU Malfunction; DTC C1534: ECU Malfunction; DTC C1535: ECU Malfunction |
| C1535 | ECU Malfunction | Power steering ECU | - | ◦ | Refer to DTC C1531: ECU Malfunction; DTC C1532: ECU Malfunction; DTC C1533: ECU Malfunction; DTC C1534: ECU Malfunction; DTC C1535: ECU Malfunction |
| C1551 | IG Power Supply Voltage Malfunction | 1. ECU-IG No. 1 fuse 2. IG power source circuit 3. Power steering ECU |
Ignition switch on (IG) again and after normal confirmation | ◦ | Refer to DTC C1551: IG Power Supply Voltage Malfunction |
| C1552 | PIG Power Supply Voltage Malfunction | 1. EPS fuse 2. PIG power source circuit 3. Power steering ECU |
Ignition switch on (IG) again and after normal confirmation | ◦ | Refer to DTC C1552: PIG Power Supply Voltage Malfunction; DTC C1554: Power Supply Relay Failure |
| C1553 | PIG Power Supply Overvoltage | 1. IG and PIG power source circuit 2. Power steering ECU |
Ignition switch on (IG) again and after normal confirmation | ◦ | Refer to DTC C1553: PIG Power Supply Overvoltage |
| C1554 | Power Supply Relay Failure | 1. EPS fuse 2. PIG power source circuit 3. Power steering ECU |
Ignition switch on (IG) again | ◦ | Refer to DTC C1552: PIG Power Supply Voltage Malfunction; DTC C1554: Power Supply Relay Failure |
| C1555 | Motor Relay Welding Failure | 1. Steering column assembly (Power steering motor) 2. Power steering ECU |
Ignition switch on (IG) again | ◦ | Refer to DTC C1524: Motor Circuit Malfunction; DTC C1555: Motor Relay Welding Failure |
| C1581 | Assist Map Number Un-Writing | 1. Power steering ECU 2. SFI system 3. CAN communication system |
- | ◦ | Refer to DTC C1581: Assist Map Number Un-Writing |
| U0100 | Lost Communication with ECM / PCM "A" | 1. CAN communication system 2. ECM |
Ignition switch on (IG) again or after normal confirmation | ◦ | Refer to DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Brake System Control Module |
| U0129 | Lost Communication with Brake System Control Module | 1. CAN communication system 2. Skid control ECU |
Ignition switch on (IG) again or after normal confirmation | ◦ | Refer to DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Brake System Control Module |
◦: Warning light comes on
*1: Depending on some detection conditions, there is a case that the warning light does not come on.