A/C COMPRESSOR CLUTCH COIL
The A/C compressor clutch coil electrical circuit is controlled by the powertrain control module (PCM) or engine control module (ECM) depending on engine appilication) through the A/C clutch relay. The A/C clutch coil can be tested by either measuring clutch field coil resistance or by measuring current draw. Begin testing of a suspected compressor clutch coil problem by performing the preliminary checks.
PRELIMINARY CHECKS
STEP 2
(refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - DIAGNOSIS AND TESTING - REFRIGERANT SYSTEM LEAKS)COIL RESISTANCE TESTCOIL CURRENT DRAW TEST
COIL RESISTANCE TEST
COIL CURRENT DRAW TEST
(refer to 8 - ELECTRICAL/BATTERY SYSTEM/BATTERY - DIAGNOSIS AND TESTING)
STEP 5
| A/C Compressor | Current Draw | Coil Resistance |
| Denso 10S17 | 3.3 amps @ 11.5 - 12.5 volts | 3.6 ± 0.2 ohms |