9: Actuator Relay and Circuit

Inspection 09 - Actuator Relay and Circuit







1. CHECKING SELF-DIAGNOSIS RESULTS (1)
Check self-diagnosis results.
Does "ACTUATOR RELAY CIRCUIT" appear on self-diagnosis results display?

YES >> GO TO 2.
NO >> Inspection is completed.

2. CHECKING SELF-DIAGNOSIS RESULTS (2)
1. Disconnect VDC/TCS/ABS control unit connector E218 and VDC relay box connector E55, E56, E57. Then reconnect it securely.
2. Perform VDC/TCS/ABS control unit self-diagnosis again.
Do any self-diagnosis items appear?

YES >> GO TO 3.
NO >> Poor connection. Repair or replace applicable connector.










3. CHECKING VDC/TCS/ABS CONTROL UNIT GROUND CIRCUIT
Check continuity between VDC/TCS/ABS control unit harness connector E218 and body ground.

OK or NG?

OK >> GO TO 4.
NG >> Poor connection of VDC/TCS/ABS control unit, or harness malfunction.










4. CHECKING ACTUATOR RELAY POWER SYSTEM
1. Disconnect VDC relay box connector E57.
2. Check voltage between VDC relay box harness connector E57 and body ground.

OK or NG?

OK >> GO T0 5.
NG >> Check fuse 30A.
Check continuity between battery and relay unit terminal No. 9. If it is not OK, replace fuse or harness.










5. CHECKING ACTUATOR RELAY POWER CIRCUIT
1. Disconnect VDC/TCS/ABS control unit connector E218 and VDC relay box connector E56.
2. Check continuity between VDC/TCS/ABS control unit harness connector E218 and VDC relay box harness connector E56.

OK or NG?

OK >> GO T0 6.
NG >> Open or short in harness between VDC/TCS/ABS control unit and VDC relay box.

6. CHECKING ACTUATOR RELAY UNIT
Check actuator relay as a unit. Refer to "VDC RELAY BOX".

OK or NG?

OK >> Check VDC/TCS/ABS control unit power circuit.
NG >> Replace actuator relay.