Lexus ES: Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Wiper and Washer System
| DTC No. | Detection Item | DTC Output from | Link |
| B1245 | Lost Communication with Wiper ECU LIN | Main Body | |
| B1279 | Lost Communication with Humidity/Rain Sensor LIN | Main Body | |
| B1370 | ECU Malfunction | Windshield wiper motor assembly | |
| B1372 | Wiper Switch Signal Mismatch between LIN and Line | Wiper | |
| B1373 | Lost Communication with Wiper System LIN BUS | Main Body | |
| B1400 | Rain Sensor Malfunction | Rain sensor | |
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DESCRIPTION The main body ECU (multiplex network body ECU) and windshield wiper motor assembly communicate via LIN communication. The main body ECU (multiplex network body ECU) stores this DTC if comm
DESCRIPTION The main body ECU (multiplex network body ECU) and rain sensor communicate via LIN communication. The main body ECU (multiplex network body ECU) stores this DTC if communication becomes ab
DESCRIPTION This DTC is stored when the windshield wiper motor assembly detects an internal malfunction. DTC No. Detection Item DTC Detection Condition Trouble Area Memory DTC Output from
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REMOVAL PROCEDURE 1. REMOVE RAIN SENSOR COVER *a Stopper Remove in this Direction (1) Remove in this Direction (2) (a) Release the stopper by pulling it out and disconnect the rain sensor as indicated by the arrows, in the order shown in the illustration. (b) Disengage the
DESCRIPTION This DTC is stored when items controlled by the certification ECU (smart key ECU assembly) cannot be customized via the navigation system vehicle customization screen. HINT: The certification ECU (smart key ECU assembly) controls the smart access system with push-button start (for Entry
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