DESCRIPTION
The back-up power source circuit for the air conditioning amplifier assembly is shown below. Power is supplied even after the ignition switch is turned off and is used for diagnostic trouble code memory, etc.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER - BATTERY) |
(a) Disconnect the F42 amplifier connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
F42-21 (B) - Body ground |
Always |
11 to 14 V |
*a |
Rear view of wire harness connector (to Air Conditioning Amplifier Assembly) |
OK |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Cellular Phone Inspection
PROCEDURE
1.
CHECK USAGE CONDITION
(a) Check that the vehicle and cellular phone meet the following conditions:
NOTICE:
If changing cellular phone settings, updating software, etc. is necessary, make
sure to obtain the per ...
Diagnosis System
DIAGNOSIS SYSTEM
1. SYMPTOM SIMULATION
HINT:
The most difficult case in troubleshooting is when no problem symptoms occur.
In such a case, a thorough problem analysis must be carried out. A simulation of
the same or similar conditions and environment in ...