Page 293 - Workshop Manual - Aumark (BJ1051)

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Diagnosis- illumination

Diagnostic Procedure

1. Checking rear fog light switch

(a) Remove rear fog light switch (refer to “Chapter 73 Instrument Panel/Combination
Meter/Cigarette Lighter-Instrument Panel, Replacement").
(b) Check rear fog light switch.

Resistances:

Use a multimeter Specified
Condition
to connect pins value
Rear fog light 9 - 6 > 1 MΩ 04
switch OFF
Rear fog light 9 - 6 ≤ 2 Ω
switch ON

Are check results normal?
Yes > Go to step 2.
No > Replace rear fog light switch.

2. Checking three-in-one controller

(a) Disconnect connectors of left and right
combination taillights J002 and J005,
turn off rear fog light switch, and
measure output voltage on pin 2 of
three-in-one controller.

Voltage: 0V

Is check result normal?
Yes > Go to step 3.
No > Replace three-in-one controller.

3. Checking harnesses
(a) Use a multimeter to measure resistances of harnesses between pin 2 of three-in-one
controller and pins 6 of left and right combination taillights J002 and J005.
Resistance: ≤2Ω
Are check results normal?
Yes > Both left and right combination taillights to power short
No > Repair or replace harnesses.

Page 293