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HA -98 HEATING, VENTILATION AND AIR CONDITIONING NO Go to "Signal circuit inspection" procedure. SIGNAL CIRCUIT INSPECTION EE5CF56F 1. Check for open in harness. 1) Ignition "OFF" 2) Disconnect water temp. sensor. 3) Measure resistance between terminal "1" of water temp. sensor and terminal "7" of A/C Control Unit. Specification : Approx. 0 Ω 1 12 15 17 19 20 21 22 2 3 4 5 6 7 8 9 10 11 2 1 1. Water temp. sensor signal 2. Sensor ground Ω 14 13 16 18 SCMHA6507L 4) Is the measured resistance within specifications? YES Go to "Ground circuit Inspection " procedure. NO Check for open in harness. Repair as necessary and go to "Verification of Vehicle Repair" procedure. GROUND CIRCUIT INSPECTION E20A6934 1. Check for open in ground harness. 1) Ignition "OFF" 2) Disconnect water temp. sensor. 3) Measure resistance between terminal "2" of water temp. sensor and chassis ground. Specification : Approx. 0 Ω |