B4M0869B
10AC5CHECK BROKEN WIRE IN GROUND CIR-
CUIT OF RELAY BOX.
Measure resistance between relay box connector and
valve relay installing point.
: Connector & terminal
To (F50) No. 3—Valve relay installing point
No. 87a
Is resistance less than 0.5Ω?
: Go to step10AC6.
: Replace relay box.
B4M0872B
10AC6CHECK GROUND SHORT IN CONTROL
CIRCUIT OF RELAY BOX.
1) Install valve relay to relay box.
2) Measure resistance between relay box connector and
chassis ground.
: Connector & terminal
To (F50) No. 1—Chassis ground
Is resistance more than 1 MΩ?
: Go to step10AC7.
: Replace relay box and check all fuses.
B4M0875A
10AC7CHECK GROUND SHORT IN CONTROL
SYSTEM HARNESS OF VALVE RELAY.
Measure resistance between ABSCM connector and chas-
sis ground.
: Connector & terminal
(F49) No. 27—Chassis ground
Is resistance more than 1 MΩ?
: Go to step10AC8.
: Repair harness between ABSCM and relay box.
Check fuse No. 18.
221
4-4cBRAKES [ABS 5.3 TYPE]
10. Diagnostics Chart with Select Monitor
B4M0880B
10AC8CHECK BATTERY SHORT OF SOLENOID
VA LV E .
1) Disconnect connector (ABS1, F9) from hydraulic unit.
2) Turn ignition switch to ON.
3) Measure voltage between hydraulic unit connector and
chassis ground.
: Connector & terminal
To (F63) No. 4 (+)—Chassis ground ( )
Is voltage 0 V?
: Go to next step.
: Replace hydraulic unit and check all fuses.
4) Turn ignition switch to OFF.
5) Measure voltage between hydraulic unit connector and
chassis ground.
: Connector & terminal
To (F63) No. 4 (+)—Chassis ground ( )
Is voltage 0 V?
: Go to step10AC9.
: Replace hydraulic unit and check all fuses.
B4M0881A
10AC9
CHECK BATTERY SHORT OF HARNESS.
1) Disconnect connector from hydraulic unit.
2) Turn ignition switch to ON.
3) Measure voltage between ABSCM connector and chas-
sis ground.
: Connector & terminal
(F49) No. 30 (+)—Chassis ground ( )
(F49) No. 24 (+)—Chassis ground ( )
(F49) No. 23 (+)—Chassis ground ( )
(F49) No. 31 (+)—Chassis ground ( )
(F49) No. 3 (+)—Chassis ground ( )
(F49) No. 51 (+)—Chassis ground ( )
(F49) No. 50 (+)—Chassis ground ( )
(F49) No. 4 (+)—Chassis ground ( )
Is voltage 0 V?
: Go to next step.
: Repair harness between hydraulic unit and
ABSCM and check all fuses.
222
4-4cBRAKES [ABS 5.3 TYPE]
10. Diagnostics Chart with Select Monitor