ECU Power Source Circuit

THEFT DETERRENT: THEFT DETERRENT SYSTEM: ECU Power Source Circuit

ECU Power Source Circuit

DESCRIPTION

This circuit provides power to operate the theft deterrent (warning) ECU.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT FUSE (ECU-B)
(a) Remove the ECU-B fuse from the engine room J/B.
(b) Measure the resistance.
Standard resistance:
Below 1 Ohms
NG -- REPLACE FUSE
OK -- Continue to next step.
2. CHECK INSTRUMENT PANEL J/B ASSEMBLY (POWER SOURCE)





(a) Disconnect the 1C J/B connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard voltage:






OK -- REPAIR OR REPLACE HARNESS OR CONNECTOR
NG -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL J/B ASSEMBLY - BODY GROUND)





(a) Disconnect the 1K and 1L J/B connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE INSTRUMENT PANEL J/B ASSEMBLY