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P0481-COOLING FAN 2 CONTROL CIRCUIT (CONTINUED) 3. HIGH SPEED RADIATOR FAN RELAY RESISTANCE Measure the resistance of the High Speed Radiator Fan Relay Coil. Is the resistance between 60 to 80 ohms? Yes >> Go To 4 No >> Replace the Relay. Perform BODY VERIFICATION TEST-VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL 4. (N112) COOLING FAN NO.2 CONTROL CIRCUIT OPEN Disconnect the IPM FCM 49 way harness connector. Measure the resistance of the (N112) Cooling Fan No.2 Relay Control circuit from the Relay connection to the IPM Is the resistance below 5.0 ohms? Yes >> Go To 5 No >> Repair the open in the (N112) Cooling Fan No.2 Relay Control circuit. Perform BODY VERIFICATION TEST-VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL 5. (N112) COOLING FAN NO.2 CONTROL CIRCUIT SHORTED TO GROUND Measure the resistance between ground and the (N112) Cooling Fan Is the resistance below 100 ohms? Yes >> Repair the short to ground in the (N112) Cooling Fan No.2 Relay Control circuit. Perform BODY VERIFICATION TEST-VER 1. (Refer to 8 - CONTROL MODULES/ FRONT CONTROL MODULE - DIAGNOSIS AND TEST- No >> Go To 6 HB ENGINE ELECTRICAL DIAGNOSTICS 9 - 527 |