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B4M0848B
8I4
CHECK AT CONTROL MODULE.
1) Connect all connectors to AT control module.
2) Turn ignition switch to ON.
3) Measure voltage between AT control module connector
terminals.
: Connector & terminal
(B55) No. 1 (+)—(B56) No. 5 ( )
Is voltage 10—13 V?
: Go to step8I5.
: Go to next step.
B4M0849B
4) Measure voltage between AT control module connector
and chassis ground.
: Connector & terminal
(B54) No. 6 (+)—Chassis ground ( )
(B55) No. 1 (+)—Chassis ground ( )
Is voltage 10—13 V?
: Replace AT control module.
: Repair harness connector between battery, igni-
tion switch and AT control module.
B4M0844A
8I5
CHECK OPEN CIRCUIT OF HARNESS.
Measure voltage between ABSCM connector and chassis
ground.
: Connector & terminal
(F49) No. 12 (+)—Chassis ground ( )
(F49) No. 39 (+)—Chassis ground ( )
Is voltage 10—13 V?
: Go to step8I6.
: Repair harness connector between AT control
module and ABSCM.
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4-4cBRAKES [ABS 5.3 TYPE]
8. Diagnostics Chart with Trouble Code
Page 2410 of 2890
8I6CHECK POOR CONTACT IN CONNEC-
TOR BETWEEN AT CONTROL MODULE
AND ABSCM.
: Is there poor contact in connectors between
AT control module and ABSCM?
: Repair connector.
: Go to step8I7.
8I7
CHECK ABSCM.
1) Connect all connectors.
2) Erase the memory.
3) Perform inspection mode.
4) Read out the trouble code.
: Is the same trouble code as in the current
diagnosis still being output?
: Replace ABSCM.
: Go to next.
: Are other trouble codes being output?
: Proceed with the diagnosis corresponding to the
trouble code.
: A temporary poor contact.
70
4-4cBRAKES [ABS 5.3 TYPE]
8. Diagnostics Chart with Trouble Code
Page 2411 of 2890
J: TROUBLE CODE 46
—ABNORMAL G SENSOR POWER SUPPLY
VOLTAGE—
DIAGNOSIS:
Faulty G sensor power supply voltage
TROUBLE SYMPTOM:
ABS does not operate.
8J1.Check G sensor.
8J2.Check ground short of G sensor.
8J3.Check short of harness between ABSCM and
G sensor.
8J4.Check ground short of harness.
8J5.Check battery short of harness.
8J6.Check poor contact in connector between
ABSCM and G sensor.
8J7.Check ABSCM.
71
4-4cBRAKES [ABS 5.3 TYPE]
8. Diagnostics Chart with Trouble Code
Page 2412 of 2890
WIRING DIAGRAM:
B4M1047
B4M0851B
8J1
CHECK G SENSOR.
1) Turn ignition switch to OFF.
2) Remove console box.
3) Disconnect connector from G sensor.
4) Measure resistance of G sensor.
: Connector & terminal
To (P11) No. 1—No. 3
Is resistance 50±8 kΩ?
: Go to step8J2.
: Replace G sensor.
72
4-4cBRAKES [ABS 5.3 TYPE]
8. Diagnostics Chart with Trouble Code
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B4M0852B
8J2
CHECK GROUND SHORT OF G SENSOR.
Measure resistance between G sensor and bracket.
: Connector & terminal
To (P11) No. 3—Bracket
Is resistance more than 1 MΩ?
: Go to step8J3.
: Replace G sensor.
B4M0853A
8J3CHECK SHORT OF HARNESS BETWEEN
ABSCM AND G SENSOR.
1) Disconnect connector from ABSCM.
2) Measure resistance between ABSCM connector termi-
nals.
: Connector & terminal
(F49) No. 45—No. 8
Is resistance more than 1 MΩ?
: Go to step8J4.
: Repair harness between ABSCM and G sensor.
B4M0854A
8J4
CHECK GROUND SHORT OF HARNESS.
Measure resistance between ABSCM connector and chas-
sis ground.
: Connector & terminal
(F49) No. 8—Chassis ground
(F49) No. 45—Chassis ground
Is resistance more than 1 MΩ?
: Go to step8J5.
: Repair harness between ABSCM and G sensor.
73
4-4cBRAKES [ABS 5.3 TYPE]
8. Diagnostics Chart with Trouble Code
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