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Home >> Pontiac >> 1988 >> 6000 V6-173 2.8L >> Repair and Diagnosis >> Heating and Air Conditioning >> Technical Service Bulletins >> By Symptom >> Customer Interest >> A/C - Odors On Hot/Humid Start Up >> Testing the Afterblow Module:

Testing the Afterblow Module:

1. Start the engine.
2. Command the A/C system ON and ensure the compressor engages.
3. Apply battery voltage to the green test lead (PIN H) for at least 30 seconds while the compressor is engaged.

4. Turn ignition off.
5. The blower should: come on after approximately 10 seconds; run for 1 second; then shut off.

6. Disconnect the jumper wire.

Warranty Information:

Labor Operation: T6235
Labor Time: Refer to applicable bulletin.