WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
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HINT:
Even if the electric parking brake is operating normally, the parking brake indicator light (red) on the combination meter may be malfunctioning.
PROCEDURE
1. | CHECK CAN COMMUNICATION SYSTEM |
(a) Check if CAN communication system DTCs are output.
Chassis > Brake/EPB > Trouble Codes Result | Proceed to |
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DTCs are not output | A |
DTCs are output | B |
B | GO TO CAN COMMUNICATION SYSTEM |
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2. | VEHICLE OPERATION CHECK |
(a) When the vehicle's tires are lifted off the ground and the Techstream is used to operate the electric parking brake, check the condition of the rear tires.
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Result | Proceed to |
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Lock and release operation is normal and parking brake indicator light turns off or blinks (red) | A |
Lock and release operation is malfunctioning and parking brake indicator light illuminates (red) or turns off according to switch operation | B |
Lock and release operation is malfunctioning and parking brake indicator light turns off or blinks (red) | C |
B | INSPECT REAR BRAKE |
C | GO TO STEP 4 |
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3. | INSPECT COMBINATION METER ASSEMBLY |
(a) Perform the Active Test of the combination meter assembly using the Techstream.
Body Electrical > Combination Meter > Active Test Tester Display |
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Indicat. Park |
(b) Check the combination meter assembly.
OK:
Parking brake indicator light (red) turns on or off in accordance with Techstream operation.
OK | REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) |
NG | GO TO METER / GAUGE SYSTEM |
4. | CHECK HARNESS AND CONNECTOR (+BS TERMINAL VOLTAGE) |
(a) Turn the engine switch off.
(b) Disconnect the A41 skid control ECU (brake actuator assembly) connector.
(c) Measure the voltage according to the value(s) in the table below. Standard Voltage:
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NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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5. | CHECK HARNESS AND CONNECTOR (IG1 TERMINAL VOLTAGE) |
(a) Turn the engine switch off.
(b) Disconnect the A41 skid control ECU (brake actuator assembly) connector.
(c) Measure the voltage according to the value(s) in the table below. Standard Voltage:
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OK | REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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