BAT/Brakes, ABS & TRAC Systems — Check TRAC solenoid relay., page 161

BR–161
BRAKE SYSTEM – TRACTION CONTROL SYSTEM (TRAC)

5 Check TRAC solenoid relay.

Open

Continuity

Continuity

P Remove solenoid relay from R/B No.5.

C Check continuity between each terminal of TRAC solenoid relay shown below.

OK
Terminals 4 and 6    Continuity (Reference value 80 )
Terminals 2 and 3    Continuity
Terminals 1 and 3    Open

Continuity

Open

C 1. Apply battery positive voltage between terminals 4 and 6.
2. Check continuity between each terminal of TRAC solenoid relay shown below.

OK
Terminals 2 and 3    Open
Terminals 1 and 3    Continuity

C Connect the ⊕ test lead to terminal 5 and the ⊖ lead to terminal 3. Check continuity between the terminals.

OK Continuity
If there is no continuity, connect the ⊖ test lead to terminal 5 and the ⊕ lead to terminal 3. Recheck continuity between terminals.

BR5404
BR5405
R07081

OK          NG Replace TRAC solenoid relay.

6 Check for open and short in harness and connector between terminal WT of TRAC ECU and battery or TRAC solenoid relay (See page IN–30).

OK          NG Repair or replace harness or connector.

Check and replace TRAC ECU.