Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Short to GND in Outer Mirror Indicator(Master) (C1AB2)
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 | Trouble Area |
|---|---|---|---|
| C1AB2 | Short to GND 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 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 (BLIND SPOT MONITOR SENSOR LH - OUTER MIRROR CONTROL ECU ASSEMBLY LH) |
(a) Disconnect the X2 blind spot monitor sensor LH connector.
(b) Disconnect the N4 outer mirror control ECU assembly LH connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Always |
|---|---|---|
| X2-4 (OMIL) - Body ground | Always | 10 kΩ or higher |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 3. | INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH |
(a) Disconnect the z12 outer rear view mirror assembly LH connector.
(b) Disconnect the IND1 outer mirror LH connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Always |
|---|---|---|
| z12-8 (BSM+) - Body ground | Always | 10 kΩ or higher |
| NG | | REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH |
|
| 4. | INSPECT OUTER MIRROR CONTROL ECU ASSEMBLY LH |
| (a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
| NG | | REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY LH |
|
| 5. | INSPECT OUTER MIRROR LH |
(a) Remove the outer mirror LH.
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(b) Inspect the outer rear view mirror indicator LH on the outer mirror LH.
Click here
| OK | | REPLACE BLIND SPOT MONITOR SENSOR LH |
| NG | | REPLACE OUTER MIRROR LH |
Short to +B in Outer Mirror Indicator(Slave) (C1AB1)
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 A ...
Short to GND in Outer Mirror Indicator(Slave) (C1AB3)
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 ...
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Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Automatic Transaxle System: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
The ECM is connected to the CAN communication system. Therefore, before starting troubleshooting, make sure to check that there are no malfunctions in the CAN communication system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NE ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Vehicle Stability Control System: Brake Pedal Switch "A" Circuit Open (C004013)
DESCRIPTION The brake pedal load sensing switch signal turns on when the brake pedal is depressed with a force exceeding a predetermined level. The skid control ECU (brake actuator assembly) uses this circuit to detect if the brake pedal is depressed or not. DTC No. Detection Item DTC Detecti ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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