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Symptom List: P2104-STARTER RELAY CIRCUIT SHORT CIRCUIT Test Note: All symptoms listed above are diagnosed using the same tests. The title for the tests will be P2104-STARTER RELAY CIR- When Monitored and Set Condition: P2104-STARTER RELAY CIRCUIT SHORT CIRCUIT When Monitored: During engine crank attempt. Set Condition: The ECM detects too much current on the Starter Motor Relay Control circuit. POSSIBLE CAUSES CHECKING THE ENGINE CONTROL RELAY SYSTEM INTERMITTENT CONDITION SUBSTITUTE STARTER RELAY STARTER RELAY CONTROL CIRCUIT SHORTED TO GROUND STARTER RELAY CONTROL CIRCUIT SHORTED TO VOLTAGE ENGINE CONTROL MODULE STARTER RELAY CONTROL CIRCUIT OPEN TEST ACTION APPLICABILITY 1 NOTE: If the ECM detects and stores a DTC, the ECM also stores the All Yes → Go To 2 No → Go To 8 161 DRIVEABILITY - DIESEL |