Lexus RX (RX 350L, RX450h) 2016-2023 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
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CAUTION / NOTICE / HINT
NOTICE:
After replacing the skid control ECU (brake actuator assembly), perform "Calibration".
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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 |
ABS Pump Motor Control Circuit Open (C052C13,C052C49,C052F14)
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-{YEAR} Owners Manual
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