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:
|
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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 engine switch off.
(b) Turn the engine 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 | Engine 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 | Engine 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 | Engine 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 | Engine 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:
Data List / Active Test
DATA LIST / ACTIVE TEST DATA LIST NOTICE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not. (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c)
Parts Location
PARTS LOCATION ILLUSTRATION *1 OUTER MIRROR SWITCH ASSEMBLY *2 OUTER REAR VIEW MIRROR ASSEMBLY LH *3 OUTER REAR VIEW MIRROR ASSEMBLY RH *4 DEF RELAY *5 OUTER MIRROR LH *6 OUTER MIRROR RH *7 NO. 1 ENGINE ROOM RELAY BLOCK AND NO. 1 JUNCTION BLOCK ASSEMBLY - DEF FUSE
