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P0646-LOW VOLTAGE DETECTED AT THE A/C CLUTCH RELAY (CONTINUED) 3. A/C CLUTCH RELAY Remove the A/C Clutch Relay from the PDC. NOTE: Check connectors - Clean/repair as necessary. Is the resistance less than 100 Ohms? Yes >> Go To 4 No >> Replace the A/C clutch relay. Perform POWERTRAIN VERIFICATION TEST VER - 1 4. FUSED BATTERY SUPPLY Ignition on, engine not running. Measure the voltage on the Fused Battery Supply circuit in the PDC. Is the voltage within 1 volt of battery voltage? Yes >> Go To 5 No >> Repair the open Fused battery supply. Perform POWERTRAIN VERIFICATION TEST VER - 1 9 - 1370 ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL DR/DH |