Symptom Chart

A/C System Troubleshooting
- Any abnormality must be corrected before continuing to the next test.
- Because of the precise measurements needed, use a digital voltmeter and ohmmeter when testing.

Before performing any troubleshooting procedures check:
- Fuses No.18, 36, 39, 17, 12, 35, 20
- Grounds No. G201, G401, G202, G203
- All electrical connections are clean and tight.





NOTE: To improve performance, when the throttle is opened quickly, the signal from the ECU to the A/C compressor is interrupted for 4-6 seconds.