Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: ABS Pump Motor Control Circuit Voltage Out of Range (C052C1C)
DESCRIPTION
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C052C1C | ABS Pump Motor Control Circuit Voltage Out of Range | When the +BS terminal voltage is from 9.5 to 17.4 V with the motor relay and motor fail safe relay OFF, an open or short in motor circuit continues for 2 seconds or more. | Skid control ECU (brake actuator assembly) |
WIRING DIAGRAM
Click here .gif)
CAUTION / NOTICE / HINT
NOTICE:
After replacing the skid control ECU (brake actuator assembly), perform "Calibration".
Click here
PROCEDURE
| 1. | CHECK HARNESS AND CONNECTOR (GND2 TERMINAL) |
(a) Make sure that there is no looseness at the locking part and the connecting part of the connectors.
OK:
The connector is securely connected.
(b) Disconnect the A41 skid control ECU (brake actuator assembly) connector.
(c) Check both the connector case and the terminals for deformation and corrosion.
OK:
No deformation or corrosion.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| A41-30 (GND2) - Body ground | 1 minute or more after disconnecting the cable from the negative (-) battery terminal | Below 1 Ω |
| OK | .gif) | REPLACE BRAKE ACTUATOR ASSEMBLY |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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DESCRIPTION The motor relay and motor fail safe relay are built into the brake actuator assembly. When the skid control ECU (brake actuator assembly) operate ABS, TRAC, VSC, brake hold or brake assist ...
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Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Vehicle Stability Control System: System Diagram
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Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Road Sign Assist System: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Before performing troubleshooting for the road sign assist system, make sure that the pre-collision system and lane control system are not malfunctioning.
Pre-collision system: Click here Lane control system: Click here
Perform the following procedure to troubl ...
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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