BE/Body Electrical Systems — Clock Loses or Gains Time, page 116

BE–116
BODY ELECTRICAL SYSTEM – CLOCK

2    CLOCK LOSES OR GAINS TIME

(a)    Check that the battery positive voltage is 10 — 16 V.
        If voltage is not as specified, replace the battery.
(b)    Inspect the error of the clock.
        Allowable error (per day):  ×2.0 seconds.
        If the error exceeds the allowable error, replace the
        clock assembly.
(c)    check if the clock adjusting button is sticking in position
        and has failed to return.
        If the button has not returned, repair or replace the
        clock assembly.
(d)    Troubleshoot the clock as follows:
        HINT:  Inspect the connector on the wire harness side.

+B    GND

+5·1

Is there 10–16 V between terminal +B
and body ground?
        Yes
Adjust or replace clock assembly.

Below 10 V    Locate cause, and repair or recharge bat-
                      tery.