Lexus ES: Short to +B in Outer Mirror Indicator(Master) (C1AB0)
DESCRIPTION
This DTC is stored when the blind spot monitor sensor RH detects a short to +B in the outer rear view mirror indicator RH.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C1AB0 | Short to +B in Outer Mirror Indicator(Master) | Both of the following conditions are met:
|
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
When checking for DTCs, make sure that the blind spot monitor system is turned on.
PROCEDURE
| 1. | CHECK DTC |
(a) Turn the power switch off.
(b) Turn the power switch on (IG).
(c) Recheck for DTCs and check if the same DTC is output again.
Body Electrical > Blind Spot Monitor Master > Trouble CodesOK:
No DTCs are output.
| OK |  | USE SIMULATION METHOD TO CHECK |
|
| 2. | CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR INDICATOR CIRCUIT) |
(a) Disconnect the R4 blind spot monitor sensor RH connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| R4-4 (OMIR) - Body ground | Power switch on (IG) | Below 1 V |
| OK | | REPLACE BLIND SPOT MONITOR SENSOR RH |
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| 3. | CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR INDICATOR CIRCUIT) |
(a) Disconnect the IND1 outer mirror RH connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| R4-4 (OMIR) - Body ground | Power switch on (IG) | Below 1 V |
| OK | | REPLACE OUTER MIRROR RH |
|
| 4. | CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR INDICATOR CIRCUIT) |
(a) Disconnect the z19 outer rear view mirror assembly RH connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| R4-4 (OMIR) - Body ground | Power switch on (IG) | Below 1 V |
| OK | | REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH |
|
| 5. | CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR INDICATOR CIRCUIT) |
(a) Disconnect the J6 outer mirror control ECU assembly RH connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| R4-4 (OMIR) - Body ground | Power switch on (IG) | Below 1 V |
| OK | | REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY RH |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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SEE MORE:
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Use the following procedure to troubleshoot the power window control system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT 2. CUSTOMER PROBLEM ANALYSIS HINT:
In troubleshooting, confirm that the proble
Removal
REMOVAL PROCEDURE 1. REMOVE FRONT WHEEL LH Click here 2. REMOVE FRONT WHEEL OPENING EXTENSION PAD LH HINT: Use the same procedure as for the RH side. Click here 3. REMOVE REAR FENDER SPLASH SHIELD SUB-ASSEMBLY LH HINT: Use the same procedure as for the RH side. Click here 4. REMOVE PIN HOLD CL
