Page 2369 of 2890
WIRING DIAGRAM:
B4M1035
29
4-4cBRAKES [ABS 5.3 TYPE]
8. Diagnostics Chart with Trouble Code
Page 2370 of 2890

B4M0806B
B4M1036A
8B1
CHECK RESISTANCE OF ABS SENSOR.
1) Turn ignition switch to OFF.
2) Disconnect connector from ABS sensor.
3) Measure resistance of ABS sensor connector terminals.
: Trouble code/Connector & terminal
21/to (B6) No. 1—No. 2
23/to (B15) No. 1—No. 2
25/to (P8) No. 1—No. 2
27/to (P9) No. 1—No. 2
Is resistance 0.8—1.2 kΩ?
: Go to step8B2.
: Replace ABS sensor.
B4M0807B
B4M1037A
8B2CHECK BATTERY SHORT OF ABS SEN-
SOR.
1) Disconnect connector from ABSCM.
2) Turn ignition switch to ON.
3) Measure voltage between ABS sensor and chassis
ground.
: Trouble code/Connector & terminal
21/to (B6) No. 1 (+)—Chassis ground ( )
23/to (B15) No. 1 (+)—Chassis ground ( )
25/to (P8) No. 1 (+)—Chassis ground ( )
27/to (P9) No. 1 (+)—Chassis ground ( )
Is voltage 0 V?
: Go to next step.
: Replace ABS sensor.
4) Turn ignition switch to OFF.
5) Measure voltage between ABS sensor and chassis
ground.
: Trouble code/Connector & terminal
21/to (B6) No. 1 (+)—Chassis ground ( )
23/to (B15) No. 1 (+)—Chassis ground ( )
25/to (P8) No. 1 (+)—Chassis ground ( )
27/to (P9) No. 1 (+)—Chassis ground ( )
Is voltage 0 V?
: Go to step8B3.
: Replace ABS sensor.
30
4-4cBRAKES [ABS 5.3 TYPE]
8. Diagnostics Chart with Trouble Code
Page 2371 of 2890

B4M0809A
8B3CHECK HARNESS CONNECTOR
BETWEEN ABSCM AND ABS SENSOR.
1) Connect connector to ABS sensor.
2) Measure resistance between ABSCM connector termi-
nals.
: Trouble code/Connector & terminal
21/(F49) No. 14—No. 15
23/(F49) No. 49—No. 19
25/(F49) No. 18—No. 46
27/(F49) No. 16—No. 17
Is resistance 0.8—1.2 kΩ?
: Go to step8B4.
: Repair harness connector between ABSCM and
ABS sensor.
B4M0810A
8B4
CHECK BATTERY SHORT OF HARNESS.
1) Turn ignition switch to ON.
2) Measure voltage between ABSCM connector and chas-
sis ground.
: Trouble code/Connector & terminal
21/(F49) No. 14 (+)—Chassis ground ( )
23/(F49) No. 49 (+)—Chassis ground ( )
25/(F49) No. 18 (+)—Chassis ground ( )
27/(F49) No. 16 (+)—Chassis ground ( )
Is voltage 0 V?
: Go to next step.
: Repair harness between ABSCM and ABS sen-
sor.
3) Turn ignition switch to OFF.
4) Measure voltage between ABSCM connector and chas-
sis ground.
: Trouble code/Connector & terminal
21/(F49) No. 14 (+)—Chassis ground ( )
23/(F49) No. 49 (+)—Chassis ground ( )
25/(F49) No. 18 (+)—Chassis ground ( )
27/(F49) No. 16 (+)—Chassis ground ( )
Is voltage 0 V?
: Go to step8B5.
: Repair harness between ABSCM and ABS sen-
sor.
31
4-4cBRAKES [ABS 5.3 TYPE]
8. Diagnostics Chart with Trouble Code
Page 2372 of 2890

8B5CHECK ABS SENSOR MECHANICAL
TROUBLE.
: Tightening torque:
32±10 N⋅m (3.3±1.0 kg-m, 24±7 ft-lb)
Are the ABS sensor installation bolts tight-
ened securely?
: Go to next.
: Tighten ABS sensor installation bolts securely.
: Tightening torque:
13±3 N⋅m (1.3±0.3 kg-m, 9±2.2 ft-lb)
Are the tone wheel installation bolts tight-
ened securely?
: Go to next step.
: Tighten tone wheel installation bolts securely.
G4M0700
1) Measure tone wheel-to-pole piece gap over entire
perimeter of the wheel.
: Is the gap within the specifications shown
in the following table?
SpecificationsFront wheel Rear wheel
0.9—1.4 mm
(0.035—0.055 in)0.7—1.2 mm
(0.028—0.047 in)
G4M0701
: Go to next step.
: Adjust the gap.
NOTE:
Adjust the gap using spacers (Part No. 26755AA000). If
spacers cannot correct the gap, replace worn sensor or
worn tone wheel.
2) Measure hub runout.
: Is the runout less than 0.05 mm (0.0020 in)?
: Go to step8B6.
: Repair hub.
32
4-4cBRAKES [ABS 5.3 TYPE]
8. Diagnostics Chart with Trouble Code
Page 2373 of 2890
8B6CHECK POOR CONTACT IN CONNEC-
TOR BETWEEN ABSCM AND ABS SEN-
SOR.
: Is there poor contact in connectors between
ABSCM and ABS sensor?
: Repair connector.
: Go to step8B7.
8B7
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.
NOTE:
Check harness and connectors between ABSCM and ABS
sensor.
33
4-4cBRAKES [ABS 5.3 TYPE]
8. Diagnostics Chart with Trouble Code
Page 2374 of 2890
C: TROUBLE CODE 22 (FRONT RH)
TROUBLE CODE 24 (FRONT LH)
TROUBLE CODE 26 (REAR RH)
TROUBLE CODE 28 (REAR LH)
—ABNORMAL ABS SENSOR (ABNORMAL
ABS SENSOR SIGNAL)—
DIAGNOSIS:
Faulty ABS sensor signal (noise, irregular signal, etc.)
Faulty harness/connector
TROUBLE SYMPTOM:
ABS does not operate.
8C1.Check ABS sensor mechanical trouble.
8C2.Check resistance of ABS sensor.
8C3.Check ground short of ABS sensor.
8C4.Check harness connector between ABSCM
and ABS sensor.
8C5.Check ground short of harness.
8C6.Check ground circuit of ABSCM.
8C7.Check poor contact in connector between
ABSCM and ABS sensor.
8C8.Check sources of signal noise.
8C9.Check shield circuit.
8C10.Check ABSCM.
34
4-4cBRAKES [ABS 5.3 TYPE]
8. Diagnostics Chart with Trouble Code
Page 2375 of 2890
WIRING DIAGRAM:
B4M1035
8C1CHECK ABS SENSOR MECHANICAL
TROUBLE.
: Tightening torque:
32±10 N⋅m (3.3±1.0 kg-m, 24±7 ft-lb)
Are the ABS sensor installation bolts tight-
ened securely?
: Go to next.
: Tighten ABS sensor installation bolts securely.
: Tightening torque:
13±3 N⋅m (1.3±0.3 kg-m, 9±2.2 ft-lb)
Are the tone wheel installation bolts tight-
ened securely?
: Go to next step.
: Tighten tone wheel installation bolts securely.
35
4-4cBRAKES [ABS 5.3 TYPE]
8. Diagnostics Chart with Trouble Code
Page 2376 of 2890

G4M0700
1) Measure tone wheel to pole piece gap over entire
perimeter of the wheel.
: Is the gap within the specifications shown
in the following table?
SpecificationsFront wheel Rear wheel
0.9—1.4 mm
(0.035—0.055 in)0.7—1.2 mm
(0.028—0.047 in)
G4M0701
: Go to next.
: Adjust the gap.
NOTE:
Adjust the gap using spacer (Part No. 26755AA000). If
spacers cannot correct the gap, replace worn sensor or
worn tone wheel.
: Is an oscilloscope available?
: Go to next step.
: Go to step 13).
B4M0815A
2) Raise all four wheels of ground.
3) Turn ignition switch OFF.
4) Disconnect connector from ABS control module.
5) Remove band.
6) Remove cable clamp cover.
7) Remove screws securing connector cover.
CAUTION:
Do not allow harness to catch on adjacent parts dur-
ing installation.
B4M1026
8) Remove connector cover.
B4M1027A
NOTE:
To install, reverse above removal procedures.
Align connector cover rib with connector hole before
installation.
36
4-4cBRAKES [ABS 5.3 TYPE]
8. Diagnostics Chart with Trouble Code