Page 2585 of 2890

B4M0808
10AF3
CHECK MOTOR GROUND.
: Tightening torque:
32±10 N⋅m (3.3±1.0 kg-m, 24±7 ft-lb)
Is the motor ground terminal tightly
clamped?
: Go to step10AF4.
: Tighten the clamp of motor ground terminal.
B4M0905A
10AF4
CHECK MOTOR OPERATION.
1) Disconnect connector (F49) from ABSCM.
2) Disconnect connector cover from ABSCM connector
(F49).
3) Connect connector (F49) to ABSCM.
4) Connect motor relay to relay box.
5) Connect all connectors.
6) Measure voltage between ABSCM connector terminal.
7) Operate the check sequence.
: Connector & terminals
(F49) No. 10 (+)—No.1( )
Does the voltage raise from less than 1.5 V
to 10—13 V, and return to less than 1.5 V
again when carrying out the check
sequence?
Can motor revolution noise (buzz) be heard
when carrying out the check sequence?
: Go to step10AF5.
: Replace hydraulic unit.
10AF5CHECK POOR CONTACT IN CONNEC-
TOR BETWEEN HYDRAULIC UNIT,
RELAY BOX AND ABSCM.
: Is there poor contact in connector between
hydraulic unit, relay box and ABSCM?
: Repair connector.
: Go to step10AF6.
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Page 2586 of 2890
10AF6
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.
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Page 2587 of 2890
B4M0972
AG: 54 BLS
—ABNORMAL STOP LIGHT SWITCH—
DIAGNOSIS:
Faulty stop light switch
TROUBLE SYMPTOM:
ABS does not operate.
10AG1.Check output of stop light switch using select
monitor.
10AG2.Check if stop lights come on.
10AG3.Check open circuit of harness.
10AG4.Check poor contact in connector between
stop light switch and ABSCM.
10AG5.Check ABSCM.
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WIRING DIAGRAM:
B4M1041
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Page 2589 of 2890

B4M0973
10AG1CHECK OUTPUT OF STOP LIGHT
SWITCH USING SELECT MONITOR.
1) Press F,0and 9on the select monitor.
2) Depress the brake pedal.
3) Read the stop light switch output on the select monitor
display.
: Is the reading indicated on monitor display
less than 1.5 V?
: Go to next step.
: Go to step10AG1.
4) Release the brake pedal.
5) Read the stop light switch output on the select monitor
display.
: Is the reading indicated on monitor display
greater than 4.5 V?
: Go to step10AG4.
: Go to step10AG2.
10AG2
CHECK IF STOP LIGHTS COME ON.
Depress the brake pedal.
: Do stop lights turn on?
: Go to step10AG3.
: Repair stop lights circuit.
B4M0908A
10AG3
CHECK OPEN CIRCUIT OF HARNESS.
1) Turn ignition switch to OFF.
2) Disconnect connector from ABSCM.
3) Depress brake pedal.
4) Measure voltage between ABSCM connector and chas-
sis ground.
: Connector & terminal
(F49) No. 36—Chassis ground
Is voltage 10—13 V?
: Go to step10AG4.
: Repair harness between stop light switch and
ABSCM.
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Page 2590 of 2890
10AG4CHECK POOR CONTACT IN CONNEC-
TOR BETWEEN STOP LIGHT SWITCH
AND ABSCM.
: Is there poor contact in connector between
stop light switch and ABSCM?
: Repair connector.
: Go to step10AG5.
10AG5
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.
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Page 2591 of 2890
B4M0974
AH: 56 G SENSOR LINE
—OPEN OR SHORT CIRCUIT OF G SENSOR
—
DIAGNOSIS:
Faulty G sensor output voltage
TROUBLE SYMPTOM:
ABS does not operate.
10AH1.Check specifications of ABSCM using select
monitor.
10AH2.Check output of G sensor using select
monitor.
10AH3.Check poor contact in connector between
ABSCM and G sensor.
10AH4.Check ABSCM.
10AH5.Check freeze frame data.
10AH6.Check broken wire in G sensor output harness
and ground harness.
10AH7.Check poor contact in connector between
ABSCM and G sensor.
10AH8.Check ABSCM.
10AH9.Check input voltage of G sensor.
10AH10.Check broken wire in G sensor output harness
and ground harness.
Continues to next page.
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Page 2592 of 2890
From the former page.
10AH11.
Check ground short in G sensor output
harness.
10AH12.Check G sensor.
10AH13.Check poor contact in connector between
ABSCM and G sensor.
10AH14.Check ABSCM.
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