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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DTC CHECK / CLEAR CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Back Door / Trouble Codes. Body Electrical > Back Door > Trouble Codes (e) Check for DTCs. Click here CLEAR DTC
InspectionINSPECTION PROCEDURE 1. INSPECT ENGINE SWITCH (a) Check the resistance. (1) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition Specified Condition 5 (SS1) - 6 (AGND) 1 (SS2) - 6 (AGND) Not pushed 10 kΩ
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