Lexus ES: Short to +B in Outer Mirror Indicator(Slave) (C1AB1)
DESCRIPTION
This DTC is stored when the blind spot monitor sensor LH detects a short to +B in the outer rear view mirror indicator LH.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C1AB1 | Short to +B in Outer Mirror Indicator(Slave) | 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 Slave > 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 R5 blind spot monitor sensor LH connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| R5-4 (OMIL) - Body ground | Power switch on (IG) | Below 1 V |
| OK | | REPLACE BLIND SPOT MONITOR SENSOR LH |
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|
| 3. | CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR INDICATOR CIRCUIT) |
(a) Disconnect the IND2 outer mirror LH connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| R5-4 (OMIL) - Body ground | Power switch on (IG) | Below 1 V |
| OK | | REPLACE OUTER MIRROR LH |
|
| 4. | CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR INDICATOR CIRCUIT) |
(a) Disconnect the z20 outer rear view mirror assembly LH connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| R5-4 (OMIL) - Body ground | Power switch on (IG) | Below 1 V |
| OK | | REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH |
|
| 5. | CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR INDICATOR CIRCUIT) |
(a) Disconnect the J28 outer mirror control ECU assembly LH connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| R5-4 (OMIL) - Body ground | Power switch on (IG) | Below 1 V |
| OK | | REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY LH |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
READ NEXT:
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DESCRIPTION This DTC is stored when the blind spot monitor sensor RH detects a short to ground in the outer rear view mirror indicator RH. DTC No. Detection Item DTC Detection Condition Troub
Short to GND in Outer Mirror Indicator(Slave) (C1AB3)
DESCRIPTION This DTC is stored when the blind spot monitor sensor LH detects a short to ground in the outer rear view mirror indicator LH. DTC No. Detection Item DTC Detection Condition Troub
Open in Outer Mirror Indicator(Master) (C1AB4)
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SEE MORE:
For owners
Reporting safety defects for U.S. owners
If you believe that your vehicle has a
defect which could cause a crash or
could cause injury or death, you
should immediately inform the
National Highway Traffic Safety
Administration (NHTSA) in addition
to notifying the Lexus Division
of Toyota Mo
Diagnosis System
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