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Diagnostic Trouble Code Chart

If a trouble code is displayed during the DTC check, check the trouble areas listed for that code in the table below and proceed to the appropriate procedure.

DIAGNOSTIC TROUBLE CODE CHART

DTC Code Detection Item Trouble Area See
P0500 Vehicle Speed Sensor Malfunction - Vehicle speed sensor
- Vehicle speed sensor signal circuit
- ECM		 Refer to DTC P0500: Vehicle Speed Sensor Malfunction; DTC P0503: Vehicle Speed Sensor "A" Intermittent / Erratic / High
P0503 Vehicle Speed Sensor "A" Intermittent / Erratic / High - Vehicle speed sensor
- Vehicle speed sensor signal circuit
- ECM		 Refer to DTC P0500: Vehicle Speed Sensor Malfunction; DTC P0503: Vehicle Speed Sensor "A" Intermittent / Erratic / High
P0571 Brake Switch "A" Circuit - Stop light switch
- Stop light switch circuit
- ECM		 Refer to DTC P0571: Brake Switch "A" Circuit
P0571 Stop Light Switch Circuit Malfunction - BRK-LP relay
- BRK-LP relay circuit
- Skid control ECU		 Refer to DTC P0571: Stop Light Switch Circuit Malfunction
P0575 Cruise Control Input Circuit - ECM (This DTC indicates malfunction in ECM. When this DTC is output, it is necessary to replace ECM) Refer to DTC P0575: Cruise Control Input Circuit
P1570 Radar Sensor Malfunction - Millimeter wave radar sensor Refer to DTC P1570: Radar Sensor Malfunction
P1572 Improper Aiming of Radar Sensor Beam Axis - Millimeter wave radar sensor Refer to DTC P1572: Improper Aiming of Radar Sensor Beam Axis
P1575 Warning Buzzer Malfunction - Skid control buzzer
- Skid control buzzer circuit
- Skid control ECU		 Refer to DTC P1575: Warning Buzzer Malfunction
P1578 Brake System Malfunction - VSC system Refer to DTC P1578: Brake System Malfunction
P1615 Communication Error from Distance Control ECU to ECM - Distance control ECU
- ECM		 Refer to DTC P1615: Communication Error from Distance Control ECU to ECM
P1616 Communication Error from ECM to Distance Control ECU - ECM
- Distance control ECU		 Refer to DTC P1616: Communication Error from ECM to Distance Control ECU
P1617 Distance Control ECU Malfunction - Distance control ECU Refer to DTC P1617: Distance Control ECU Malfunction
P1630 Communication Error from VSC to ECM - Skid control ECU
- ECM		 Refer to DTC P1630: Communication Error from VSC to ECM
P1631 Communication Error from ECM to VSC - ECM
- Skid control ECU		 Refer to DTC P1631: Communication Error from ECM to VSC
U0100 Lost Communication with ECM / PCM "A" - Communication circuit
- ECM
- Skid control ECU		 Refer to DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0122: Lost Communication with Vehicle Dynamics Control Module; DTC U0123: Lost Communication with Yaw Rate Sensor Module; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U1101: Lost Communication with Distance Control ECU
U0122 Lost Communication with Vehicle Dynamics Control Module - Communication circuit
- Skid control ECU
- ECM		 Refer to DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0122: Lost Communication with Vehicle Dynamics Control Module; DTC U0123: Lost Communication with Yaw Rate Sensor Module; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U1101: Lost Communication with Distance Control ECU
U0123 Lost Communication with Yaw Rate Sensor Module - Communication circuit
- Yaw rate and acceleration sensor
- Distance control ECU
- ECM		 Refer to DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0122: Lost Communication with Vehicle Dynamics Control Module; DTC U0123: Lost Communication with Yaw Rate Sensor Module; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U1101: Lost Communication with Distance Control ECU
U0126 Lost Communication with Steering Angle Sensor Module - Communication circuit
- Steering angle sensor
- Distance control ECU
- ECM		 Refer to DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0122: Lost Communication with Vehicle Dynamics Control Module; DTC U0123: Lost Communication with Yaw Rate Sensor Module; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U1101: Lost Communication with Distance Control ECU
U1101 Lost Communication with Distance Control ECU - Communication circuit
- Distance control ECU
- ECM		 Refer to DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0122: Lost Communication with Vehicle Dynamics Control Module; DTC U0123: Lost Communication with Yaw Rate Sensor Module; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U1101: Lost Communication with Distance Control ECU
U0235 Lost Communication with Cruise Control Front Distance Range Sensor - Communication circuit
- Millimeter wave radar sensor
- Distance control ECU		 Refer to DTC U0235: Lost Communication with Cruise Control Front Distance Range Sensor
U1102 Lost Communication with Radar Sensor - Communication circuit
- Millimeter wave radar sensor
- Distance control ECU		 Refer to DTC U1102: Lost Communication with Radar Sensor
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