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• When Monitored: • Set Condition: Possible Causes (F856) 5-VOLT SUPPLY CIRCUIT SHORTED TO BATTERY VOLTAGE (F856) 5-VOLT SUPPLY CIRCUIT OPEN (F856) 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND (K44) CMP SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE (K44) CMP SIGNAL CIRCUIT OPEN (K44) CMP SIGNAL CIRCUIT SHORTED GROUND (K44) CMP SIGNAL SHORTED TO (F856) 5-VOLT SUPPLY CIRCUIT (K900) SENSOR GROUND CIRCUIT OPEN CAMSHAFT POSITION SENSOR CRANKSHAFT POSITION SENSOR PCM Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - Diagnostic Test 1. ACTIVE DTC Crank the engine. Ignition on, engine not running. With a scan tool read the DTCs. Is the DTC active at this time? Yes >> Go To 2 No >> Go To 14 2. (F856) 5-VOLT SUPPLY CIRCUIT Turn the ignition off. Disconnect the CMP Sensor harness connector. Ignition on, engine not running. Measure the voltage on the (F856) 5-volt Supply circuit in the CMP Is the voltage between 4.5 and 5.2 volts? Yes >> Go To 3 No >> Go To 10 9 - 376 ENGINE ELECTRICAL DIAGNOSTICS LX |