Isuzu 1999 RODEO Workshop Manual page 685

6E1–58
RODEO X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION
A/C Clutch Control Circuit Diagnosis (Cont'd)
Step
6 1. Reinstall the A/C Compressor Clutch Relay.
2. Using a fused jumper, ground the A/C Compressor
Clutch Relay control circuit at the PCM connector.
3. Ignition ON, engine OFF.
Does the A/C Compressor turn ON?
7 1. Ignition OFF.
2. Check the A/C Compressor Clutch circuit between
the A/C Compressor Clutch Relay and A/C
Compressor Clutch for the following conditions:
f
A short to ground
f
An open circuit
f
A short to voltage
Was the problem found?
8 Replace the A/C Compressor Clutch Relay.
Is the action complete?
9 Replace the PCM.
IMPORTANT: The
programmed.Refer
Powertrain Control
procedures.
And also refer to latest service bulletin
Check to see if the Latest software is released or not.
And then Down Load the LATEST PROGRAMMED
SOFTWARE to the replacement PCM.
Verify repair.
Action
replacement PCM must
to On–Vehicle Service
Module and Sensors
Value(s)
— Go to Step 9
— Verify repair
— Verify repair
be
in
for
—
Yes No
Go to Step 7
Go to Step 8
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— —