Toyota Camry (XV70): Parking Brake Switch Circuit
DESCRIPTION
This circuit is from the skid control ECU (brake actuator assembly) to the radio and display receiver assembly.
WIRING DIAGRAM
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PROCEDURE
| 1. |
CHECK BRAKE WARNING LIGHT |
(a) Check that the brake warning light comes on when the parking brake is applied and goes off when it is released.
OK:
The brake warning light operates as specified above.
| NG | .gif) | GO TO BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS
|
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| 2. |
CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) - RADIO AND DISPLAY RECEIVER ASSEMBLY) |
(a) Disconnect the K2 radio and display receiver assembly connector.
(b) Disconnect the A34 skid control ECU (brake actuator assembly) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
K2-20 (PKB) - A34-33 (PKB) |
Always | Below 1 Ω |
|
K2-20 (PKB) or A34-33 (PKB) - Body ground |
Always | 10 kΩ or higher |
| OK | | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE
|
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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PRO
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ABS Pump Motor Control Circuit Short to Ground (C052C11,C052C13,C052F14,C142719)
DESCRIPTION The ABS motor relay is built into the brake actuator assembly.
When the skid control ECU (brake actuator assembly) operates ABS, TRAC, VSC or brake assist, the ABS motor relay turns ON and drives the motor pump built into the brake actuator assembly.
DTC No. Detection Item
Back-up Light Bulb
ComponentsCOMPONENTS ILLUSTRATION
*1 BACK-UP LIGHT BULB
*2 LUGGAGE COMPARTMENT DOOR COVER RemovalREMOVAL CAUTION / NOTICE / HINT
HINT:
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
PROCEDURE 1. REMOVE LUGGAGE COMP
