Power Source Circuit

OTHER SYSTEM: CLOCK SYSTEM: 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.

HINT
If the clock assembly displays "1:00" when the ignition switch off, then on (IG) again, the B (*1) or +B (*2) terminal has a malfunction.

The maximum clock assembly margin of error is -4 to 4 seconds per day when the temperature is between -20°C (-4°F) and 60°C (140°F).

* *1: w/o Multi-information Display
* *2: w/ Multi-information Display

WIRING DIAGRAM

1. w/o Multi-information Display





2. w/ Multi-information Display





INSPECTION PROCEDURE

PROCEDURE

1. CHECK HARNESS AND CONNECTOR

(a) Disconnect the E20 (*1) or E11 (*2) connector.





(b) Measure the voltage according to the value(s) in the table below.

Standard voltage:





*1: w/o Multi-information Display

*2: w/ Multi-information Display

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

Standard resistance:





*1: w/o Multi-information Display

*2: w/ Multi-information Display

Result:





B -- REPLACE CLOCK ASSEMBLY (w/ Multi-information Display) Removal

C -- REPAIR OR REPLACE HARNESS OR CONNECTOR

A -- REPLACE CLOCK ASSEMBLY (w/o Multi-information Display) Removal