TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
p.080

BAT/Brakes, ABS & TRAC Systems — Inspection Procedure, page 81

81 / 167
p.082
Inspection Procedure — MK4 Supra Brakes, ABS & TRAC Systems, page 81
100%
Page text (OCR transcript)
BR–81
BRAKE SYSTEM – ANTI–LOCK BRAKE SYSTEM (ABS)

INSPECTION PROCEDURE

Check voltage between terminal 1 of R/B No. 5 (for TRAC motor relay)
and body ground.

LOCK

P  Remove TRAC motor relay from R/B No. 5.

C  Measure voltage between terminal 1 of R/B No. 5
(for TRAC motor relay) and body ground.

OK  Voltage: 10 — 14 V.

R/B No.5

8E8053
R07050

OK

NG  Check and repair harness or connector.

Check continuity between terminal 2 of R/B No. 5 (for TRAC motor relay)
and terminal 2 of TRAC pump motor.

C  Check continuity between terminal 2 of R/B No. 5
(for TRAC motor relay ) and terminal 2 of TRAC
pump motor.

OK  Continuity.

HINT: There is a resistance of 4 — 6    between ter-
minals 2 and 3 of TRAC pump motor.

TRAC Motor
Relay (R/B No.5)
2

3

TRAC
Pump Motor
2

R07080

OK

NG  Repair or replace harness or TRAC pump
motor.