Check Ignition Switch

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

DIAGNOSIS PROCEDURE

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 replaced fusible link has blown out easily, repair the short circuit between the fusible link and the ignition switch.	Go to step 2 .
2 CHECK FOR POWER SUPPLY OF IGNITION SWITCH. Disconnect the ignition switch harness connector (B72). Measure the voltage between harness connector terminal and chassis ground. Connector & terminal (B72) No. 3 (+) - Chassis ground (-):	Is the voltage 10 V or more?	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 turning the ignition key to each position?	Ignition switch is normal.	Replace the ignition switch with a new one. Ref. to REPLACEMENT , Ignition Key Lock.