Check Ignition Switch

STEP CHECK SHEET

Step	Check	Yes	No
1. CHECK FUSIBLE LINK. Remove the fusible link main SBF and SBF-6 (in main fuse box), and visually check.	Is the fusible link blown out?	Replace the fusible link main SBF or SBF-6. If the replace fusible link blown out easily, repair short circuit in harness between fusible link and ignition switch.	Go to step 2.
2. CHECK FOR POWER SUPPLY OF IGNITION SWITCH. Disconnect the ignition switch harness connector. Measure the voltage between harness connector terminal and body ground. Connector & terminal (B72) No. 3 (+) - Chassis ground (-):	Is the voltage more than 10 V?	Go to step 3.	Check the harness for open circuits and shorts between the ignition switch and fusible link.
3. CHECK IGNITION SWITCH. Insert the ignition key into ignition switch, and turn the each position. Measure the resistance between ignition switch terminals. Connector & terminal No. 3 - No. 4 (ACC position): No. 3 - No. 4 - No. 6 - No. 1 (ON position): No. 3 - No. 6 - No. 1 - No. 2 (ST position):	Is the resistance less than 1 Ω when ignition key turn the each position?	Ignition switch is normal.	Replace the ignition switch with a new one. < Ref. to , REPLACEMENT , Ignition Key Lock. >

Step

Check

Yes

1. CHECK FUSIBLE LINK.

Remove the fusible link main SBF and SBF-6 (in main fuse box), and visually check.

Is the fusible link blown out?

Replace the fusible link main SBF or SBF-6. If the replace fusible link blown out easily, repair short circuit in harness between fusible link and ignition switch.

Go to step 2.

2. CHECK FOR POWER SUPPLY OF IGNITION SWITCH.

Disconnect the ignition switch harness connector.
Measure the voltage between harness connector terminal and body ground.

Connector & terminal

(B72) No. 3 (+) - Chassis ground (-):

Is the voltage more than 10 V?

Go to step 3.

Check the harness for open circuits and shorts between the ignition switch and fusible link.

3. CHECK IGNITION SWITCH.

Insert the ignition key into ignition switch, and turn the each position.
Measure the resistance between ignition switch terminals.

Connector & terminal

No. 3 - No. 4 (ACC position):

No. 3 - No. 4 - No. 6 - No. 1 (ON position):

No. 3 - No. 6 - No. 1 - No. 2 (ST position):

Is the resistance less than 1 Ω when ignition key turn the each position?

Ignition switch is normal.

Replace the ignition switch with a new one. < Ref. to , REPLACEMENT , Ignition Key Lock. >

CAUTION: When the ignition key lock is replaced, all ignition keys also must be registered. < Refer to "IMMOBILIZER TEACHING OPERATION MANUAL">