Lexus ES: ECU Malfunction (B1370)
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 |
|---|---|---|---|---|---|
| B1370 | ECU Malfunction |
| Windshield wiper motor assembly | ○ | Windshield wiper motor assembly |
PROCEDURE
| 1. | CLEAR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Wiper / Trouble Codes.
(e) Clear the DTCs.
Body Electrical > Wiper > Clear DTCs
|
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| 2. | CHECK FOR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Wait 10 seconds or more.
(d) Turn the Techstream on.
(e) Enter the following menus: Body Electrical / Wiper / Trouble Codes.
(f) Check for DTCs.
Body Electrical > Wiper > Trouble Codes| Result | Proceed to |
|---|---|
| DTC B1370 is not output | A |
| DTC B1370 is output | B |
| A | .gif) | USE SIMULATION METHOD TO CHECK |
| B | | REPLACE WINDSHIELD WIPER MOTOR ASSEMBLY |
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Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT:
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspect
