Diagnostic Trouble Code Chart
WARNING: This page is about a different car, the 2004 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
DTC INDEX
| DTC | Description |
|---|---|
| DTC P0500, P0503 | VEHICLE SPEED SENSOR CIRCUIT MALFUNCTION, VEHICLE SPEED SENSOR CIRCUIT MALFUNCTION |
| DTC P0571 | STOP LIGHT SWITCH CIRCUIT MALFUNCTION |
| DTC P0607 | INPUT SIGNAL CIRCUIT MALFUNCTION |
| DTC P1615, U1101 | COMMUNICATION ERROR FROM DISTANCE CONTROL ECU TO ECM, LOST COMMUNICATION WITH DISTANCE CONTROL ECU |
| DTC P1616, U0100 | COMMUNICATION ERROR FROM ECM TO DISTANCE CONTROL ECU, LOST COMMUNICATION WITH ECM/PCM "A" |
| DTC P1617 | DISTANCE CONTROL ECU MALFUNCTION |
| DTC P1630, U0122 | COMMUNICATION ERROR FROM VSC TO ECM, LOST COMMUNICATION WITH VEHICLE DYNAMIC CONTROL MODULE |
| DTC P1631, U0100 | COMMUNICATION ERROR FROM ECM TO VSC, LOST COMMUNICATION WITH ECM/PCM "A" |
| DTC P1575 | WARNING BUZZER MALFUNCTION |
| DTC P1578 | BRAKE SYSTEM MALFUNCTION |
| DTC U0235 | LOST COMMUNICATION WITH CRUISE CONTROL FRONT DISTANCE RANGE SENSOR |
| DTC U1102 | LOST COMMUNICATION WITH RADAR SENSOR |
| DTC P1570 | RADAR SENSOR MALFUNCTION |
| DTC P1572 | IMPROPER AIMING OF RADAR SENSOR BEAM AXIS |
| DTC U0126 | LOST COMMUNICATION WITH STEERING ANGLE SENSOR MODULE |
| DTC U0123 | LOST COMMUNICATION WITH YAW RATE SENSOR MODULE |
HINT:
If a trouble code is displayed during the DTC check, check the circuit listed for that code. For details of each code, refer to the "See" under the respective "DTC No." in the DTC chart.
DIAGNOSTIC TROUBLE CODE CHART
| DTC No. (See) | Circuit Inspection | Trouble Area |
|---|---|---|
| P0500 ( DTC P0500 VEHICLE SPEED SENSOR CIRCUIT MALFUNCTION, DTC P0503 VEHICLE SPEED SENSOR CIRCUIT MALFUNCTION ) | Vehicle speed sensor circuit malfunction |
|
| P0503 ( DTC P0500 VEHICLE SPEED SENSOR CIRCUIT MALFUNCTION, DTC P0503 VEHICLE SPEED SENSOR CIRCUIT MALFUNCTION ) | Vehicle speed sensor circuit malfunction |
|
| P0571 ( DTC P0571 STOP LIGHT SWITCH CIRCUIT MALFUNCTION ) | Stop light switch circuit malfunction |
|
| P0607 ( DTC P0607 INPUT SIGNAL CIRCUIT MALFUNCTION ) | Input signal circuit malfunction |
|
| P1615 ( DTC P1615 COMMUNICATION ERROR FROM DISTANCE CONTROL ECU TO ECM, DTC U1101 LOST COMMUNICATION WITH DISTANCE CONTROL ECU ) | Communication error from distance control ECU to ECM |
|
| P1616 ( DTC P1616 COMMUNICATION ERROR FROM ECM TO DISTANCE CONTROL ECU, DTC U0100 LOST COMMUNICATION WITH ECM/PCM "A" ) | Communication error from ECM to distance control ECU |
|
| P1617 ( DTC P1617 DISTANCE CONTROL ECU MALFUNCTION ) | Distance control ECU malfunction |
|
| P1630 ( DTC P1630 COMMUNICATION ERROR FROM VSC TO ECM, DTC U0122 LOST COMMUNICATION WITH VEHICLE DYNAMIC CONTROL MODULE ) | Communication error from VSC to ECM |
|
| P1631 ( DTC P1631 COMMUNICATION ERROR FROM ECM TO VSC, DTC U0100 LOST COMMUNICATION WITH ECM/PCM "A" ) | Communication error from ECM to VSC |
|
| P1575 ( DTC P1575 WARNING BUZZER MALFUNCTION ) | Warning buzzer malfunction |
|
| P1578 (*1) ( DTC P1578 BRAKE SYSTEM MALFUNCTION ) | Brake system malfunction |
|
| U0235 ( DTC U0235 LOST COMMUNICATION WITH CRUISE CONTROL FRONT DISTANCE RANGE SENSOR ) | Lost communication with cruise control front distance range sensor |
|
| U1102 ( DTC U1102 LOST COMMUNICATION WITH RADAR SENSOR ) | Lost communication with radar sensor |
|
| P1570 ( DTC P1570 RADAR SENSOR MALFUNCTION ) | Radar sensor malfunction |
|
| P1572 ( DTC P1572 IMPROPER AIMING OF RADAR SENSOR BEAM AXIS ) | Improper aiming of radar sensor beam axis |
|
| U0100 ( DTC P1616 COMMUNICATION ERROR FROM ECM TO DISTANCE CONTROL ECU, DTC U0100 LOST COMMUNICATION WITH ECM/PCM "A" ) | Lost communication with ECM/PCM "A" |
|
| U0100 ( DTC P1631 COMMUNICATION ERROR FROM ECM TO VSC, DTC U0100 LOST COMMUNICATION WITH ECM/PCM "A" ) | Lost communication with ECM/PCM "A" |
|
| U0126 ( DTC U0126 LOST COMMUNICATION WITH STEERING ANGLE SENSOR MODULE ) | Lost communication with steering angle sensor module |
|
| U0123 ( DTC U0123 LOST COMMUNICATION WITH YAW RATE SENSOR MODULE ) | Lost communication with yaw rate sensor module |
|
| U1101 ( DTC P1615 COMMUNICATION ERROR FROM DISTANCE CONTROL ECU TO ECM, DTC U1101 LOST COMMUNICATION WITH DISTANCE CONTROL ECU ) | Lost communication with distance control ECU |
|
| U0122 ( DTC P1630 COMMUNICATION ERROR FROM VSC TO ECM, DTC U0122 LOST COMMUNICATION WITH VEHICLE DYNAMIC CONTROL MODULE ) | Lost communication with vehicle dynamic control module |
|
HINT:
*: When DTC P1578 is output, check for DTCs on the skid control ECU in the diagnosis mode. Only when the DTC.