Page 2425 of 2890

B4M0831B
8K20CHECK RESISTANCE OF OUTLET SOLE-
NOID VALVE.
Measure resistance between hydraulic unit connector ter-
minals.
: Connector & terminal
To (F9) No. 8—to (ABS1) No. 2
To (F9) No. 5—to (ABS1) No. 2
To (F9) No. 6—to (ABS1) No. 2
To (F9) No. 7—to (ABS1) No. 2
Is resistance 4.3±0.5Ω?
: Go to step8K21.
: Replace hydraulic unit.
B4M0879B
8K21CHECK GROUND SHORT OF SOLENOID
VA LV E .
Measure resistance between hydraulic unit connector and
chassis ground.
: Connector & terminal
To (F9) No. 4—Chassis ground
Is resistance more than 1 MΩ?
: Go to step8K22.
: Replace hydraulic unit and check all fuses.
B4M0880B
8K22CHECK BATTERY SHORT OF SOLENOID
VA LV E .
1) Turn ignition switch to ON.
2) Measure voltage between hydraulic unit connector and
chassis ground.
: Connector & terminal
To (F9) No. 4 (+)—Chassis ground ( )
Is voltage 0 V?
: Go to next step.
: Replace hydraulic unit and check all fuses.
3) Turn ignition switch to OFF.
4) Measure voltage between hydraulic unit connector and
chassis ground.
: Connector & terminal
To (F9) No. 4 (+)—Chassis ground ( )
Is voltage 0 V?
: Go to step8K23.
: Replace hydraulic unit and check all fuses.
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8. Diagnostics Chart with Trouble Code
Page 2426 of 2890

B4M0881A
8K23
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.
4) Turn ignition switch to OFF.
5) 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 step8K24.
: Repair harness between hydraulic unit and
ABSCM and check all fuses.
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8. Diagnostics Chart with Trouble Code
Page 2427 of 2890

B4M0882A
8K24
CHECK GROUND SHORT OF HARNESS.
Measure resistance 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 resistance more than 1 MΩ?
: Go to step8K25.
: Repair harness between hydraulic unit and
ABSCM.
B4M0883A
8K25CHECK HARNESS CONNECTOR
BETWEEN ABSCM AND HYDRAULIC
UNIT.
1) Connect connector to hydraulic unit.
2) Measure resistance between ABSCM connector termi-
nals.
: Connector & terminal
(F49) No. 30—No. 1
(F49) No. 24—No. 1
(F49) No. 23—No. 1
(F49) No. 31—No. 1
Is resistance 9.0±0.7Ω?
: Go to next.
: Repair harness connector between hydraulic unit
and ABSCM.
B4M0884A
: Connector & terminal
(F49) No. 3—No. 1
(F49) No. 51—No. 1
(F49) No. 50—No. 1
(F49) No. 4—No. 1
Is resistance 4.8±0.5Ω?
: Go to step8K26.
: Repair harness connector between hydraulic unit
and ABSCM.
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8. Diagnostics Chart with Trouble Code
Page 2428 of 2890
8K26CHECK POOR CONTACT IN CONNEC-
TOR BETWEEN ABSCM AND HYDRAU-
LIC UNIT.
: Is there poor contact in connector between
ABSCM and hydraulic unit?
: Repair connector.
: Go to step8K27.
8K27
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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8. Diagnostics Chart with Trouble Code
Page 2429 of 2890

L: TROUBLE CODE 52
—ABNORMAL MOTOR AND/OR MOTOR
RELAY—
DIAGNOSIS:
Faulty motor
Faulty motor relay
Faulty harness connector
TROUBLE SYMPTOM:
ABS does not operate.
8L1.Check resistance of motor relay.
8L2.Check contact point of motor relay.
8L3.Check short of motor relay.
8L4.Check input voltage of relay box.
8L5.Check input voltage of motor relay.
8L6.Check broken wire in contact point circuit of
relay box.
8L7.Check ground short in contact point circuit of
relay box.
8L8.Check battery short in contact point circuit of
relay box.
8L9.Check broken wire in monitor system circuit of
relay box.
8L10.Check broken wire in control circuit of relay
box.
8L11.Check ground short in control circuit of relay
box.
8L12.Check battery short in control circuit of relay
box.
8L13.Check broken wire in monitor system harness.
8L14.Check broken wire in relay control system
harness.
8L15.Check ground short between relay box and
ABSCM.
Continues to next page.
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8. Diagnostics Chart with Trouble Code
Page 2430 of 2890
From the former page.
8L16.
Check battery short between relay box and
ABSCM.
8L17.Check ground short at ABSCM monitor
terminal.
8L18.Check battery short at ABSCM monitor
terminal.
8L19.Check motor ground.
8L20.Check ABSCM motor drive terminal.
8L21.Check motor operation.
8L22.Check poor contact in connector between
hydraulic unit, relay box and ABSCM.
8L23.Check ABSCM.
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8. Diagnostics Chart with Trouble Code
Page 2431 of 2890
WIRING DIAGRAM:
B4M1049
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8. Diagnostics Chart with Trouble Code
Page 2432 of 2890
B4M0886A
8L1
CHECK RESISTANCE OF MOTOR RELAY.
1) Turn ignition switch to OFF.
2) Remove motor relay from relay box.
3) Measure resistance between motor relay terminals.
: Terminals
No. 85—No. 86
Is resistance 80±10Ω?
: Go to step8L2.
: Replace motor relay.
B4M0887A
8L2CHECK CONTACT POINT OF MOTOR
RELAY.
1) Connect battery to motor relay terminals No. 85 and No.
86.
2) Measure resistance between motor relay terminals.
: Terminals
No. 30—No. 87
Is resistance less than 0.5Ω?
: Go to next step.
: Replace motor relay.
B4M0888A
3) Disconnect battery from motor relay terminals.
4) Measure resistance between motor relay terminals.
: Terminals
No. 30—No. 87
Is resistance more than 1 MΩ?
: Go to step8L3.
: Replace motor relay.
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8. Diagnostics Chart with Trouble Code