For a complete wiring diagram Refer to Section 8WWhen Monitored:With the ignition on.Set Condition:The ECM detects a short to voltage on the Sensor Supply 1 circuit for 0.10 seconds.Possible CausesINTERMITTENT DTC(K356) BOOST PRESSURE SENSOR 5-VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE(K350) FUEL PRESSURE SENSOR 5-VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE(K844) CAMSHAFT POSITION SENSOR 5-VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGEENGINE CONTROL MODULEAlways perform the Pre-Diagnostic Troubleshooting procedure before proceeding.(Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)The ECM contains 3 internal 5–Volt Sensor Supply sources. Each 5–Volt Supply source is split into parallel circuits to provide 5 volts to multiple sensors. Sensor Supply 1 provides 5 volts to the Camshaft Position Sensor, Boost Pressure Sensor and the Fuel Pressure Sensor.1. CHECK FOR ACTIVE DTCTurn the ignition on.With the scan tool, erase ECM DTCs.Turn the ignition off for 10 seconds.Turn the ignition on.With the scan tool, View DTCs.Is the status Active for this DTC?YesGo To2NoRefer to the *CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure.(Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)2. (K356) BOOST PRESSURE SENSOR 5-VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE

Turn the ignition off.Disconnect the Boost Pressure Sensor harness connector.Disconnect the ECM harness connectors.Remove the ASD Relay from the TIPM.Connect a jumper wire between cavity 30 and cavity 87 of the ASD Relay connector.Turn the ignition on.Measure the voltage on the (K356) Boost Pressure Sensor 5 Volt Supply circuit at the Boost Pressure Sensor harness connector.Is the voltage below 1.0 volt?YesGo To3NoRepair the (K356) Boost Pressure Sensor 5 Volt Supply circuit for a short to voltage.Perform the ECM Verification Test Ver. 1. (Refer to 9 - ENGINE - STANDARD PROCEDURE)3. (K844) CAMSHAFT POSITION SENSOR 5-VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE

Turn the ignition off.Disconnect the Camshaft Position Sensor harness connector.The jumper wire should still be in place.Turn the ignition on.Measure the voltage on the (K844) Camshaft Position Sensor 5 Volt Supply circuit at the CMP Sensor harness connector.Is the voltage below 1.0 volt?YesGo To4NoRepair the (K844) Camshaft Position Sensor 5 Volt Supply circuit for a short to voltage.Perform the ECM Verification Test Ver. 1. (Refer to 9 - ENGINE - STANDARD PROCEDURE)4. (K350) FUEL PRESSURE SENSOR 5-VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE

Turn the ignition off.Disconnect the Fuel Pressure Sensor harness connector.The jumper wire should still be in place.Turn the ignition on.Measure the voltage on the (K350) Fuel Pressure Sensor 5 Volt Supply circuit at the Fuel Pressure Sensor harness connector.Is the voltage below 1.0 volt?YesGo To5NoRepair the (K350) Fuel Pressure Sensor 5 Volt Supply circuit for a short to voltage.Perform the ECM Verification Test Ver. 1. (Refer to 9 - ENGINE - STANDARD PROCEDURE)5. ENGINE CONTROL MODULE (ECM)Turn the ignition off.Remove the jumper wire and install the ASD relay.Inspect the (K356) Boost Pressure Sensor 5 Volt Supply circuit between the Boost Pressure Sensor harness connector and the ECM harness connector.Inspect the (K844) Camshaft Position Sensor 5 Volt Supply circuit between the CMP harness connector and the ECM harness connector.Inspect the (K350) Fuel Pressure Sensor 5 Volt Supply circuit between the Fuel Pressure Sensor harness connector and the ECM harness connectorLook for any chafed, pierced, pinched, or partially broken wires.Look for broken, bent, pushed out or corroded terminals.Monitor the scan tool data relative to this circuit and wiggle test the wiring and connectors.Look for the data to change or for the DTC to reset during the wiggle test.Refer to any Technical Service Bulletins that may apply.Were any problems found?YesRepair as necessary.Perform the ECM Verification Test Ver. 1. (Refer to 9 - ENGINE - STANDARD PROCEDURE)NoReplace and program the Engine Control Module in accordance with the Service Information.Perform the ECM Verification Test Ver. 1. (Refer to 9 - ENGINE - STANDARD PROCEDURE)