Engine Immobilizer System

ENGINE IMMOBILIZER: ENGINE IMMOBILIZER SYSTEM: Power Source Circuit

Power Source Circuit

DESCRIPTION

This circuit provides power to operate the transponder key ECU.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT FUSE (D/C CUT, IG2 MAIN, IGN, MPX-B1, IG2)
(a) Remove the D/C CUT and IG2 MAIN fuses from the engine room No. 1 relay block.
(b) Remove the IGN fuse from the engine room No. 2 relay block.
(c) Remove the MPX-B1 and IG2 fuses from the passenger side junction block.
(d) Measure the resistance of the fuses.
Standard resistance:
Below 1 Ohms
NG -- REPLACE FUSE
OK -- Continue to next step.
2. INSPECT IG2 RELAY
(a) Remove the IG2 relay from the engine room No. 1 relay block.




(b) Measure the resistance of the relay.
Standard resistance:






NG -- REPLACE IG2 RELAY
OK -- Continue to next step.
3. CHECK WIRE HARNESS (TRANSPONDER KEY ECU - BATTERY AND BODY GROUND)




(a) Disconnect the T13 ECU connector.
(b) Measure the resistance and voltage of the wire harness side connector.
Standard resistance:






Standard voltage:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE TRANSPONDER KEY ECU