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6-144 ENGINE GENERAL INFORMATION AND DIAGNOSIS
Step
9
Check A/C Condenser Fan Relay No.1 and
No.2
1) Check A/C condenser fan relay No.1 and
No.2 referring to "Condenser Cooling Fan
Relay (No.1 and No.2) Inspection" in Sec-
tion 1B.
Is each relay in good condition?
10
A/C Condenser Fan Control Signal Check
1) Connect connectors to ECM.
2) Install A/C condenser fan relay No.1 and
No.2.
3) Start engine.
4) Measure voltage between each "C64-12"
and "C64-5" wire terminal of ECM connector
and vehicle body ground.
Is each voltage 10 – 14 V?
1
[A]
Action
[A]: Fig. 1 for Step 2 and Step 3
1. A/C condenser fan relay No.1
2. A/C condenser fan relay No.2
2
Yes
Go to Step 10.
Intermittent trouble.
Check for intermittent
referring to "Intermittent
and Poor Connection" in
Section 0A.
No
Replace A/C condenser
fan relay No.1 or No.2.
Substitute a known-good
ECM and recheck.
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