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6E2–50 6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS A/C Clutch Control Circuit Diagnosis (Cont'd) Step No Yes Value(s) Action 4 IMPORTANT: Before continuing with the diagnosis, the D The intake air temperature must be greater than ° C. (60 ° F). D The engine coolant temperature must be less ° C (246 ° F). 1. A/C “OFF.” Is the A/C compressor clutch engaged even though — Go to Step 45 Go to Step 5 5 1. Idle the engine. Is the A/C compressor magnetic clutch engaged? — Refer to Diagnostic Aids Go to Step 6 6 1. Engine idling. (Refer to the miscelluneous test) Does the “A/C Request” display indicate “Yes?” — Go to Step 34 Go to Step 7 7 Temporarily substitute the A/C compressor relay in Did the “A/C Request” display indicate “Yes?” — Go to Step 8 Go to Step 9 8 Replace the original A/C thermostat relay. Is the action complete? — Verify repair — 9 Dose the blower operate? — Go to Step 10 Go to Step 11 10 Repair the blower. Is the action complete? — Verify repair — 11 Check for a faulty 10A A/C fuse in the passenger Was the 10A fuse OK? — Go to Step 13 Go to Step 12 12 Check for short circuit and make repairs if necessary. Is the action complete? — Verify repair — 13 1. Ignition “ON.” switch wire (BRN). Was voltage equal to the specified value? B+ Go to Step 15 Go to Step 14 14 Repair the open wire (BRN) between the A/C switch Is the action complete? — Verify repair — |