Power Source Circuit

OTHER SYSTEM: CLOCK: Power Source Circuit

Power Source Circuit

DESCRIPTION

- This circuit is the power source for the clock assembly.

- This circuit provides two types of power sources; one is a constant power source mainly used as a backup power source, and the other is a power source mainly used for signal transmission. The constant power source is mainly used as a backup power source of the clock assembly, however, it is also used for communication.
HINT: If the clock assembly displays "1:00" when the ignition switch turned off, and turned on (IG) again, the B terminal has a malfunction.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT CLOCK ASSEMBLY




(a) Disconnect the F3 connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard voltage:





(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN PROBLEM SYMPTOMS TABLE