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P2503-CHARGING SYSTEM OUTPUT LOW (CONTINUED) 5. (K20) GEN FIELD CONTROL CIRCUIT SHORTED TO BATTERY VOLTAGE Turn the ignition off. Disconnect the C2 PCM harness connector. Ignition on, engine not running. Measure the voltage on the (K20) Gen Field Control circuit in the Gen- Is the voltage above 1.0 volt? Yes >> Repair the short to battery voltage in the (K20) Gen Field Control circuit. Perform the POWERTRAIN VERIFICATION TEST. (Refer No >> Go To 6 6. (K20) FIELD CONTROL CIRCUIT OPEN Turn the ignition off. CAUTION: Do not probe the PCM harness connectors. Probing Is the resistance below 5.0 ohms? Yes >> Go To 7 No >> Repair the open in the (K20) Gen Field Control circuit. Perform the POWERTRAIN VERIFICATION TEST. (Refer 9 - 1002 ENGINE - ELECTRICAL DIAGNOSTICS - 3.7L/4.7L/5.7L DR/DH |