7081052

Terminal & Connector Inspection

Many malfunctions in the electrical system are caused by poor harness and terminals. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.

Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.

Has a problem been found?

	▶ Repair as necessary and go to "Verification Vehicle Repair" procedure.
	▶ Go to "Power Circuit Inspection".

Power Circuit Inspection

Disconnect an Inhibitor swtich.

IG KEY "ON"" & Engine "OFF".

Measure voltge between supplied power and ground at inhibitor circuit.

Specification : Approx. 12V

Is the measured voltage within specifications?

▶ Go to "Signal Circuit Inspection" procedure.

▶ Check that ECU fuse-10A is installed or opened.

▶ Check circuit open and replace as necessary and then go to "Verification of Vehicle Repair" procedure.

Signal Circuit Inspection

Connect an Inhibitor switch.

Ignition "ON" & Engine "OFF".

Measure voltages between each terminal and chassis ground during shift lever changed "P, R, N, D".

Specification : See below "Inhibitor switch specification"

Inhibitor Switch Specification
NO	IGN SW	SELECT	SIGNAL
NO	IGN SW	SELECT	Inhibitor Switch 1 (S1)	Inhibitor Switch 2 (S2)	Inhibitor Switch 3 (S3)	Inhibitor Switch 4 (S4)
1	ON	P Range SW	12V	0V	0V	0V
2	ON	R Range SW	0V	12V	0V	0V
3	ON	N Range SW	0V	0V	12V	0V
4	ON	D Range SW	0V	0V	0V	12V

Is the measured voltage within specifications?

▶ Substitute with a known-good Inhibitor switch and check for proper operation.If the problem is corrected, replace Inhibitor switch and then go to "Verification of Vehicle Repair" procedure.

▶ Check a battery short circuit, a ground short circuit at the wiring of Inhibitor switch and then go to "Verification of Vehicle Repair" procedure.

▶ If wiring of Inhibitor switch is normal then, Substitute with a known-good Inhibitor switch and check for proper operation.If the problem is corrected, replace Inhibitor switch and then go to "Verification of Vehicle Repair" procedure.