ANTI-LOCK BRAKE SYSTEM — Diagnosis Chart (ABS-5, ABS-6)

P-59spec table

IMPORTANT

ABS-5 Diagnostic trouble code: 53

Possible failure: Motor, motor relay

ABS-5 — Diagnostic trouble code: 53

Step	Check item	Remark	Refer to
1	Check ABS motor relay	If pump motor continues operating after turning ignition switch OFF, motor relay may be faulty	P-73
2	Check ABS pump fuse	Check ABS pump fuse condition	P-63
		Check short to ground	—
3	Check wiring harness between ABS relay and hydraulic unit and ABS control module	Check for open or short to ground	—
4	Check voltage at ABS control module terminal	Turn ignition switch ON and check motor relay terminal voltage	P-65
5	Check ABS motor	Check for open circuit	P-62
6	Check wiring harness between ABS motor and ground	Check for open circuit	—
7	Check wiring harness between ABS motor and ABS control module	Check for open or short to ground	—
8	Check ABS warning light operation	If warning illuminates constantly after turning ignition switch ON, replace control module	—
		If warning light does not illuminate after turning ignition switch ON, there was a temporary poor contact in wiring and now ABS system is functioning	—

Check itemCheck ABS motor relay

RemarkIf pump motor continues operating after turning ignition switch OFF, motor relay may be faulty

Refer toP-73

Check itemCheck ABS pump fuse

RemarkCheck ABS pump fuse condition

Refer toP-63

Check item

RemarkCheck short to ground

Refer to—

Check itemCheck wiring harness between ABS relay and hydraulic unit and ABS control module

RemarkCheck for open or short to ground

Refer to—

Check itemCheck voltage at ABS control module terminal

RemarkTurn ignition switch ON and check motor relay terminal voltage

Refer toP-65

Check itemCheck ABS motor

RemarkCheck for open circuit

Refer toP-62

Check itemCheck wiring harness between ABS motor and ground

RemarkCheck for open circuit

Refer to—

Check itemCheck wiring harness between ABS motor and ABS control module

RemarkCheck for open or short to ground

Refer to—

Check itemCheck ABS warning light operation

RemarkIf warning illuminates constantly after turning ignition switch ON, replace control module

Refer to—

Check item

RemarkIf warning light does not illuminate after turning ignition switch ON, there was a temporary poor contact in wiring and now ABS system is functioning

Refer to—

IMPORTANT

ABS-6 Diagnostic trouble code: 61

Possible failure: ABS control module

ABS-6 — Diagnostic trouble code: 61

Step	Check item	Remark	Refer to
1	—	Replace ABS control module	P-71

Check item—

RemarkReplace ABS control module

Refer toP-71

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ANTI-LOCK BRAKE SYSTEM — Diagnosis Chart (ABS-5, ABS-6)

ABS-5 — Diagnostic trouble code: 53

ABS-6 — Diagnostic trouble code: 61

See also

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