Page 2505 of 3342
B4M0719A
1. CHECK HARNESS CONNECTOR BETWEEN ABS/
TCS CONTROL MODULE AND TCS OPERATING
INDICATOR LIGHT.
1) Turn ignition switch OFF.
2) Disconnect all connectors from ABS/TCS control mod-
ule.
3) Turn ignition switch ON.
4) Measure voltage between ABS/TCS control module
connector and body.
Connector & terminal / Specified voltage:
(P6) No. 11—body / 10—13 V
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7. Diagnostics Chart for Warning Light Circuit Failure
Page 2506 of 3342
G: TCS OFF SWITCH DOES NOT FUNCTION.
—TCS OFF INDICATOR LIGHT COMES ON
AND GOES OFF PROPERLY WHEN
STARTING THE ENGINE, WHILE THIS LIGHT
NEITHER COMES ON NOR GOES OFF WHEN
PUSHING THE TCS OFF SWITCH.—
1. Check TCS OFF switch
OK
Not OK
Replace TCS OFF switch.
2. Check harness connector between ABS/TCS
control module and TCS OFF switch.
OK
Not OK
Repair harness/connector.
Replace ABS/TCS control module.
B4M0535
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7. Diagnostics Chart for Warning Light Circuit Failure
Page 2507 of 3342
B4M0720A
1. CHECK TCS OFF SWITCH.
1) Turn ignition switch OFF.
2) Disconnect connector from TCS OFF switch.
3) Measure resistance between TCS OFF switch termi-
nals.
Connector & terminal / Specified resistance:
(i9) No. 5—No.3/1Ωor less
(When the switch is pressed,
turns ON.)
/1MΩor less
(When the switch is released,
turns OFF.)
B4M0401A
2. CHECK HARNESS CONNECTOR BETWEEN ABS/
TCS CONTROL MODULE AND TCS OFF SWITCH.
1) Turn ignition switch OFF.
2) Disconnect connector to TCS OFF switch.
3) Disconnect connector from ABS/TCS control module.
4) Measure resistance between ABS/TCS control module
connector terminals.
Connector & terminal / Specified resistance:
(P7) No. 16—body / 1Ωor less (When the switch
is pressed, turns ON.)
/1MΩor more (When the
switch is released, turns OFF.)
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7. Diagnostics Chart for Warning Light Circuit Failure
Page 2508 of 3342
H: ABS WARNING, TCS WARNING, TCS
OPERATING INDICATOR AND/OR TCS OFF
INDICATOR LIGHTS DO NOT COME ON.
—TROUBLE IN WARNING LIGHT DRIVE
CIRCUIT—
DIAGNOSIS:
Faulty ABS warning light
Faulty TCS warning light
Faulty TCS OFF light
Faulty TCS operating indicator light
Faulty harness connector
Faulty ABS/TCS control module
TROUBLE SYMPTOM:
Warning light does not illuminate.
Impossible to read trouble code.
Check warning light bulb.
OK
Not OK
Repair warning light bulb.
1. Check warning light power supply.
OK
Not OK
Repair ABS warning light power line.
2. Check input voltage of ABS/TCS control mod-
ule.
OK
Not OK
Repair harness/connector.
3. Check ground line of ABS/TCS control mod-
ule.
OK
Not OK
Repair ground line.
Replace ABS/TCS control module.
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7. Diagnostics Chart for Warning Light Circuit Failure
Page 2509 of 3342
B4M0402
B4M0403A
1. CHECK WARNING LIGHT POWER SUPPLY.
1) Turn ignition switch OFF.
2) Disconnect combination meter.
3) Turn ignition switch ON.
4) Measure voltage between combination meter connector
and body.
Connector & terminal / Specified voltage:
(i14) No. 11—body / 10—13 V
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7. Diagnostics Chart for Warning Light Circuit Failure
Page 2510 of 3342
B4M0404A
2. CHECK INPUT VOLTAGE OF ABS/TCS CONTROL
MODULE.
1) Turn ignition switch OFF and connect combination
meter connector.
2) Disconnect all connectors from ABS/TCS control mod-
ule.
3) Remove ABS/TCS valve relay.
4) Turn ignition switch ON.
5) Measure voltage between ABS/TCS control module and
body.
Connector & terminal / Specified voltage:
ABS warning:
(P6) No. 2—body / 10—13 V
TCS warning:
(P6) No. 3—body / 10—13 V
TCS operation:
(P6) No. 11—body / 10—13 V
TCS OFF:
(P6) No. 10—body / 10—13 V
B4M0405A
3. CHECK GROUND LINE OF ABS/TCS CONTROL
MODULE.
Measure resistance between ABS/TCS control module and
body.
Connector & terminal / Specified resistance:
(P4) No. 6—body / 1Ωor less
(P5) No. 5—body / 1Ωor less
(P7) No. 15—body / 1Ωor less
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7. Diagnostics Chart for Warning Light Circuit Failure
Page 2511 of 3342

8. Diagnostics Chart with Trouble Code
A: LIST OF TROUBLE CODE
Trouble code Contents of diagnosis Ref. to 4-4b
11Start code
Trouble code is shown after start code.
Only start code is shown in normal condition.—
21
Faulty ABS sensor
(Open circuit or short circuit)Front right wheel speed sensor
[T8B0] 23 Front left wheel speed sensor
25 Rear right wheel speed sensor
27 Rear left wheel speed sensor
22
Faulty ABS sensor
(Faulty ABS sensor signal)Front right wheel speed sensor
[T8C0] 24 Front left wheel speed sensor
26 Rear right wheel speed sensor
28 Rear left wheel speed sensor
31
Faulty solenoid valve circuit(s) in hydraulic
unitFront right inlet valve [T8D0]
32 Front right outlet valve [T8E0]
33 Front left inlet valve [T8D0]
34 Front left outlet valve [T8E0]
35 Rear right inlet valve [T8D0]
36 Rear right outlet valve [T8E0]
37 Rear left inlet valve [T8D0]
38 Rear left outlet valve [T8E0]
41 Faulty ABS/TCS control module [T8F0]
42 Source voltage is high.[T8G0]
43 Faulty engine control module communication cables [T8H0]
51 Faulty valve relay[T8I0]
52 Faulty motor, motor sensor and/or motor relay [T8J0]
54 Faulty stroke sensor and/or stop light switch [T8K0]
57 Faulty fluid level sensor[T8L0]
58 Faulty pressure switch[T8M0]
61
Faulty solenoid valve circuit(s) in hydraulic
unitTCS 1 valve [T8D0]
62 TCS 2 valve [T8D0]
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8. Diagnostics Chart with Trouble Code
Page 2512 of 3342
B: TROUBLE CODE 21, 23, 25 AND 27
—FAULTY ABS SENSOR (OPEN CIRCUIT OR
SHORT CIRCUIT)—
DIAGNOSIS:
Faulty ABS sensor
Faulty harness/connector
Faulty ABS/TCS control module
TROUBLE SYMPTOM:
ABS does not operate.
TCS does not operate.
1. Check resistance of ABS sensor.
OK
Not OK
Replace ABS sensor.
2. Check body short of ABS sensor.
OK
Not OK
Replace ABS sensor.
3. Check harness connector between ABS/TCS
control module and ABS sensor.
OK
Not OK
Repair harness/connector.
4. Check body short of harness.
OK
Not OK
Repair harness/connector.
Replace ABS/TCS control module.
NOTE:
When checking ABS sensor, carefully bend or swing con-
nector and harness to check for improper contacts or open
circuits.
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8. Diagnostics Chart with Trouble Code