Driveability - Gas - Non-Dtc Diagnostics: Diagnosis Dodge Journey I

Diagnostic Test

1. NO CRANK CONDITION NOTE: Diagnose and repair DTC B2229-SKREEM Internal - SKIM Immobilizer before continuing. NOTE: Diagnose and repair any Totally Integrated Power Module (TIPM) DTCs before continuing. NOTE: Make sure the gear selector is in Park or Neutral. NOTE: Insect all fuses for opens. NOTE: The battery must be fully charged and in good condition. An undercharged battery may produce invalid test results. Attempt to start the engine. Does the starter turn the engine over? Yes Test complete. No Refer to «Electrical/Starting - Diagnosis and Testing»(ref-353594-S39310752922010011200000) and perform the appropriate procedure.

1. RADIATOR FAN HIGH RELAY OPERATION NOTE: Diagnose and repair any Coolant Fan circuit or Temperature Sensor circuit DTCs before proceeding with this test. Turn the ignition on. With the scan tool, actuate the Radiator Fan High Relay. Does the Cooling Fan operate? Yes Go to step 2 No Go to step 3
2. RADIATOR FAN CONTROL RELAY OPERATION With the scan tool, actuate the Radiator Fan Control Relay. Does the Cooling Fan operate? Yes Test complete. No Go to step 8
3. RADIATOR FAN HIGH RELAY Turn the ignition off. Verify the Radiator Fan High Relay is installed properly and that the terminals are making a tight fit. Remove the Radiator Fan High Relay and substitute it with a known good Relay. Ignition on, engine not running. With a scan tool, actuate the Radiator Fan High Relay. Is the Cooling Fan operating? Yes Replace the Radiator Fan High Relay. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure»(ref-353625-S36713451532010011200000) . No Go to step 4
4. (Z904) GROUND CIRCUIT OPEN Turn the ignition off. Disconnect the Radiator Cooling Fan harness connector. Using a 12-volt test light connected to voltage, check the (Z904) Ground circuit in the Cooling Fan harness connector. NOTE: The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery. Is the test light illuminated and bright? Yes Go to step 5 No Repair the (Z904) Ground circuit for an open or high resistance. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure»(ref-353625-S36713451532010011200000) .
5. RADIATOR COOLING FAN MODULE Turn the ignition on. Using a 12-volt test light connected to ground, check the (N24) Radiator Fan Relay Output circuit in the Radiator Cooling Fan harness connector. With the scan tool, actuate the Radiator Fan High Relay. NOTE: The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery. Is the test light illuminated and bright? Yes Replace the Cooling Fan. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure»(ref-353625-S36713451532010011200000) . No Go to step 6
6. (N24) RAD FAN CONTROL RELAY OUTPUT CIRCUIT OPEN OR HIGH RESISTANCE Turn the ignition off. Remove the Radiator Fan High Relay. Turn the ignition on. Using a 12-volt test light connected to voltage, check the (A16) Fused B+ circuit in the Radiator Fan High Relay harness connector. NOTE: The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery. Is the test light illuminated and bright? Yes Repair the (N24) Rad Fan Control Relay Output circuit for an open or high resistance. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure»(ref-353625-S36713451532010011200000) . No Go to step 7
7. (A16) FUSED B+ CIRCUIT OPEN OR HIGH RESISTANCE Turn the ignition off. Disconnect the C3 TIPM harness connector. Measure the resistance in the (A16) Fused B+ circuit from the Radiator Fan High Relay harness connector to the Totally Integrated Power Module (TIPM) harness connector. Is the resistance below 100 Ohms? Yes Go to step 13 No Repair the (A16) Fused B+ circuit for an open or high resistance. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure»(ref-353625-S36713451532010011200000) .
8. RADIATOR FAN CONTROL RELAY Turn the ignition off. Verify the Radiator Fan Control Relay is installed properly and that the terminals are making a tight fit. Remove the Radiator Fan Control Relay and substitute it with a known good Relay. Ignition on, engine not running. With a scan tool, actuate the Radiator Fan Control Relay. Is the Cooling Fan operating? Yes Replace the Radiator Fan Control Relay. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure»(ref-353625-S36713451532010011200000) . No Go to step 9
9. RADIATOR COOLING FAN MODULE Turn the ignition off. Disconnect the Radiator Cooling Fan harness connector. Turn the ignition on. Using a 12-volt test light connected to ground, check the (N24) Radiator Fan Relay Output circuit in the Radiator Cooling Fan harness connector. With the scan tool, actuate the Radiator Fan Control Relay. NOTE: The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery. Is the test light illuminated and bright? Yes Replace the Cooling Fan. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure»(ref-353625-S36713451532010011200000) . No Go to step 10
10. RADIATOR FAN CONTROL RELAY OUTPUT Turn the ignition off. Disconnect the Radiator Fan Resistor harness connector. Turn the ignition on. Using a 12-volt test light connected to ground, check the (N23) Low Speed Fan Control Output circuit in the Radiator Fan Resistor harness connector. With the scan tool, actuate the Radiator Fan Control Relay. NOTE: The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery. Is the test light illuminated and bright? Yes Go to step 11 No Go to step 12
11. (N24) RAD FAN CONTROL RELAY OUTPUT OPEN OR HIGH RESISTANCE. Turn the ignition off. Measure the resistance in the (N24) Rad Fan Control Relay Output circuit from the Cooling Fan harness connector to the Radiator Fan Resistor harness connector. Is the resistance below 100 Ohms? Yes Replace the Radiator Fan Resistor in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure»(ref-353625-S36713451532010011200000) . No Repair the open or high resistance in the (N24) Rad Fan Control Relay Output circuit. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure»(ref-353625-S36713451532010011200000) .
12. (N23) LOW SPEED RAD FAN CONTROL OUTPUT CIRCUIT OPEN OR HIGH RESISTANCE Turn the ignition off. Disconnect the C3 TIPM harness connector. Measure the resistance in the (N23) Low Speed Rad Fan Control Output circuit from the Radiator Fan Resistor harness connector to the C3 TIPM harness connector. Is the resistance below 100 Ohms? Yes Go to step 13 No Repair the open or high resistance in the (N23) Low Speed Rad Fan Control Output circuit. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure»(ref-353625-S36713451532010011200000) .
13. TOTALLY INTEGRATED POWER MODULE (TIPM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Cooling Fan Module, TIPM and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the Cooling Fan Module, TIPM and Powertrain Control Module (PCM) connectors. Perform any Technical Service Bulletins (TSBs) that may apply. Were there any problems found? Yes Repair as necessary. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure»(ref-353625-S36713451532010011200000) . No Replace the Totally Integrated Power Module (TIPM) in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure»(ref-353625-S36713451532010011200000) .

1. ENGINE COOLANT TEMPERATURE SENSOR WIRING OR CONNECTORS NOTE: Diagnose and repair any ECT circuit DTCs before proceeding with this test. NOTE: Allow the engine to cool to ambient temperature before proceeding. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Engine Coolant Temperature sensor(s) and the PCM. Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Turn the ignition on. Monitor the scan tool data relative to the sensor(s) and wiggle test the wiring and connectors. Look for the data to change or for a DTC to set during the wiggle test. Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) . No Go to step 2
2. ENGINE COOLANT LEVEL AND CONDITION WARNING: Make sure the engine cooling system is cool before removing the pressure cap or any hose. The cooling system is pressurized when hot. Failure to follow these instructions can result in possible serious or fatal injury. Check the engine coolant level and the condition of the engine coolant. Refer to the appropriate Service Information. Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) . No Go to step 3
3. THERMOSTAT WARNING: Make sure the engine cooling system is cool before removing the pressure cap or any hose. The cooling system is pressurized when hot. Failure to follow these instructions can result in possible serious or fatal injury. Using the appropriate service information, determine the proper opening temperature of the thermostat. With the scan tool, read the Engine Coolant Temperature Sensor value. If the engine was allowed to cool completely, the value should be approximately equal to the ambient temperature. Monitor the sensor value on the scan tool. Start the engine. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: The thermostat should not open until the engine reaches the temperature specified in the Service Information. Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) . No Go to step 4
4. ENGINE COOLANT TEMPERATURE SENSOR NOTE: Allow the engine to cool to ambient temperature before proceeding. WARNING: Make sure the engine cooling system is cool before removing the pressure cap or any hose. The cooling system is pressurized when hot. Failure to follow these instructions can result in possible serious or fatal injury. With the scan tool, read the Engine Coolant Temperature Sensor value. If the engine was allowed to cool completely, the value should be approximately equal to the ambient temperature. Monitor the sensor value on the scan tool and the actual coolant temperature with a thermometer. Start the engine. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. NOTE: The sensor value transition should be smooth as the engine reaches operating temperature. The thermometer reading and the coolant temperature value on the scan tool should remain relatively close. Were any problems found? Yes Go to step 5 . Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) . No Test complete.
5. (K2) ECT SIGNAL CIRCUIT HIGH RESISTANCE Turn the ignition off. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install PCM Pinout Box 8815 along with the Adapter 8815-1 to perform the diagnosis. Using a voltmeter, perform a voltage drop test by backprobing the (K2) ECT Signal circuit at the Engine Coolant Temperature Sensor harness connector and by probing the appropriate terminal of the special tool #8815. Make sure the voltmeter leads are connected so that positive polarity is displayed on the voltmeter. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. Start the engine. Is the voltage below 0.5 volts? Yes Go to step 6 No Repair the (K2) ECT Signal circuit for excessive resistance. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) .
6. (K900) SENSOR GROUND CIRCUIT HIGH RESISTANCE Turn the ignition off. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install PCM Pinout Box 8815 along with the Adapter 8815-1 to perform the diagnosis. Using a voltmeter, perform a voltage drop test by backprobing the (K900) Sensor Ground circuit at the Engine Coolant Temperature Sensor harness connector and by probing the appropriate terminal of the special tool #8815. Make sure the voltmeter leads are connected so that positive polarity is displayed on the voltmeter. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. Start the engine. Is the voltage below 0.5 volts? Yes Go to step 7 No Repair the (K900) Sensor Ground circuit for excessive resistance. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) .
7. ENGINE COOLANT TEMPERATURE SENSOR Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Engine Coolant Temperature Sensor and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Refer to any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) . No Replace the Engine Coolant Temperature Sensor. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) .

1. CHECKING THE ENGINE MECHANICAL SYSTEM Turn the ignition off. Check for any of the following conditions/mechanical problems: AIR INDUCTION SYSTEM - must be free from leaks and restrictions ENGINE VACUUM - must be at least 13 inches in neutral ENGINE VALVE TIMING - must be within specifications ENGINE COMPRESSION - must be within specifications ENGINE EXHAUST SYSTEM - must be free from leaks and restrictions ENGINE OIL - must be clean, at the proper level, free from contamination or fuel ENGINE PCV SYSTEM - must flow freely TORQUE CONVERTER STALL SPEED - must be within specifications POWER BRAKE BOOSTER - no internal vacuum leaks FUEL - must be free of contamination FUEL INJECTOR - plugged or restricted injector(s); control wire not connected to the correct injector CAM LOBES - must not be worn excessively CYLINDER LEAKAGE TEST - must be within specifications VALVE SPRINGS - cannot be weak or broken

1. CHECKING THE EXHAUST SYSTEM FOR LEAKS Turn the ignition off. Raise the vehicle in accordance with the Service Information. WARNING: The normal operating temperature of the exhaust system is very high. Never work around or attempt to service any part of the exhaust system until it has cooled. Special care should be taken when working near the catalytic converter. The temperature of the converter rises to a high level after a short period of engine operating time Connect Exhaust Cone 8404-EC or 8404-EC to Air Pressure Regulator (with hose) W-18-MIL-1146AS. CAUTION: The air pressure must not exceed 27.6 kPa (4 psi), otherwise engine damage can occur. Attach shop air to the air pressure regulator. Adjust the Air Pressure Regulator to 27.6 kPa (4 psi). Insert the exhaust cone into the vehicle tail pipe. If the vehicle is equipped with dual exhaust. Use the 8404-ECT with equipped attached plug, plug one side of the dual exhaust pipe. Pressurize the other as described above. Apply Mopar® Air Leak Detector PN 05191804AA (or an equivalent leak finder liquid) to the following areas: All welded joints from the exhaust manifold to 152.4 mm (6 in.) behind the downstream O2 sensor O2 sensor seal points O2 sensor boss welds Flange/joint connection(s) Exhaust manifold to cylinder head connection(s) EGR solenoid gasket base and tube seal points (if equipped) Watch for the Mopar® Air Leak Detector PN 05191804AA (or the equivalent leak finder liquid) to bubble. Use the following definitions to help determine if system or component repair/replacement is necessary: Type 1 Leak is defined as a leak where very small foam like bubbles 1 mm (0.04 of an inch) or less appear. Any Type 1 or greater leaks found in welded joints, O2 sensor seal points or O2 sensor boss welds must be repaired or the component must be replaced. Type 2 Leak is defined as a leak where larger bubbles pea size, 8 mm (0.3 of an inch) or greater appear. Any Type 2 or greater leaks found in flange or joint connections, exhaust manifold to cylinder head connections, or EGR gasket and tube seal points must be repaired or the components must be replaced. Leak Location Repair required if results at 4 psi reveal bubble size: Welded joints Type 1: 1 mm (0.04 in.) or greater O2 Sensor seal points Type 1: 1 mm (0.04 in.) or greater O2 Sensor boss welds Type 1: 1 mm (0.04 in.) or greater Flange/joint connections Type 2: 8 mm (0.31 in.) or greater Exhaust Manifold to cylinder head connections Type 2: 8 mm (0.31 in.) or greater EGR gasket and tube seal points Type 2: 8 mm (0.31 in.) or greater If a leak is found that matches the above definition, repair or replace the component as necessary. Once the repair is complete, repeat the procedure to verify that all leaks have been repaired. Were any exhaust leaks found? Yes Repair or replace the leaking exhaust parts as necessary. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) . No Test complete.

1. IGNITION COIL WIRING OR CONNECTORS NOTE: Diagnose and repair any ignition coil, CMP sensor, or CKP sensor DTCs before proceeding with this test. Turn the ignition off. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Ignition Coil for the cylinder being tested and the PCM. Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. NOTE: If the vehicle is not equipped with the coil on plug ignition system, check the resistance of the ignition wire(s) before checking the cylinder with a spark tester. The resistance should be below 10k Ohms. Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) . No Go to step 2
2. IGNITION COIL OPERATION NOTE: Inspect the ignition coil for damage, carbon tracking on the coil or a damaged spark plug insulator boot. If a problem is found, replace the ignition coil. NOTE: 6.1L coils must have a spark tester installed on both sides of the coil during the following test. During the test, each side of the coil should output a crisp blue spark that is able to jump the gap of the spark tester. NOTE: On the 2.7 and 3.5 engines, cylinders 1, 3 and 5, it is necessary to remove the upper intake manifold to access the ignition coils. Once the ignition coil has been removed, the intake must be installed in order to crank the engine. Move the ignition coil harness connector through the slots in the upper intake and then connect the coil to the harness connector. Secure the upper intake to the lower intake in accordance with the Service Information. Turn the ignition off. If the vehicle is equipped with coil on plug ignition system, remove the ignition coil for the cylinder being tested. Disconnect the fuel injector harness connector for the cylinder being tested. For coil on plug ignition systems, install a spark tester(s) on the ignition coil, otherwise install the spark tester to the ignition wire. While cranking the engine observe the spark coming from the spark tester. NOTE: A crisp blue spark that jumps the gap of the spark tester should be generated. Is good spark present? Yes Go to step 7 No Go to step 3
3. MAIN/ASD RELAY OUTPUT CIRCUIT OPEN OR HIGH RESISTANCE Turn the ignition off. Disconnect the Ignition Coil harness connector. Turn the ignition on. With the scan tool, actuate the Main/ASD Relay to on. Using a 12-volt test light connected to ground, check the Main/ASD Relay output circuit in the ignition coil harness connector. NOTE: The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery. Is the test light illuminated and bright during the actuation? Yes Go to step 4 No Repair the Main/ASD Relay output circuit for an open circuit or high resistance. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) .
4. IGNITION COIL WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. Using a 12-volt test light connected to 12 volts, check the Ignition Coil control circuit for the cylinder being tested in the Ignition Coil harness connector. Crank the engine for 5 seconds. NOTE: The test light should blink each time the circuit is activated by the PCM. Does the test light blink each time the circuit is activated by the PCM? Yes Replace the Ignition Coil in accordance with the Service Information. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) . No Go To 5
5. IGNITION COIL CONTROL CIRCUIT OPEN OR HIGH RESISTANCE CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals, resulting in poor terminal to pin connection. Install PCM Pinout Box 8815 to perform diagnosis. Measure the resistance of the Ignition Coil control circuit for the cylinder being tested between the Ignition Coil harness connector and the appropriate terminal of PCM Pinout Box 8815. Is the resistance below 5.0 Ohms? Yes Go To 6 No Repair the Ignition Coil control circuit for an open circuit or high resistance. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) .
6. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Ignition Coil for the cylinder being tested and the PCM. Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Perform any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) .
7. SPARK PLUG(S) Turn the ignition off. Remove the spark plug. NOTE: Vehicles equipped with 5.7L or 6.1L engines must have both spark plugs (per cylinder) removed and inspected to ensure proper operation. Inspect the spark plug for any of the following conditions: Cracks or damage Carbon tracking Foreign material Gap not within specification Loose or broken electrode NOTE: Lightly tap the bottom of the spark plug on a solid surface. The electrode in the spark plug should not move. Were any problems found? Yes Replace the spark plug. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) . No Test Complete.

Scheme 473

For complete wiring diagrams, refer to SYSTEM WIRING DIAGRAMS .

1. MAP SENSOR WIRING OR CONNECTORS NOTE: Diagnose and repair any MAP Sensor circuit DTCs before proceeding with this test. NOTE: Diagnose and repair any sensor supply or system voltage DTCs before proceeding with this test. Turn the ignition off. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the MAP Sensor and the PCM. Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Turn the ignition on. Monitor the scan tool data relative to the sensor and wiggle test the wiring and connectors. Look for the data to change or for a DTC to set during the wiggle test. If necessary, check each sensor circuit for high resistance or a shorted condition. Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) No Go to step 2
2. MAP VACUUM/BAROMETRIC PRESSURE With a scan tool, read the Barometric Pressure. NOTE: The Barometric Pressure should be approximately equal to the actual barometric pressure. If necessary, compare the Barometric Pressure value of the tested vehicle to the value of a known good vehicle of a similar make and model. Connect a vacuum gauge to a manifold vacuum source. Start the engine. NOTE: If engine will not idle, maintain a constant RPM above idle. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. With the scan tool, read the MAP Sensor vacuum. NOTE: The scan tool reading for MAP vacuum should be within 1" of the vacuum gauge reading. Were any problems found? Yes Go to step 4 Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) No Go to step 3
3. MAP SENSOR VOLTAGE With the scan tool, monitor the MAP Sensor signal voltage. With the engine idling in neutral or park, snap the throttle. NOTE: The MAP Sensor signal voltage should change from below 2.0 volts at idle to above 3.5 volts at wide open throttle. Were any problems found? Yes Go to step 4 Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) No Test complete.
4. (F856) 5 VOLT SUPPLY CIRCUIT HIGH RESISTANCE Turn the ignition off. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install PCM Pinout Box 8815 along with the Adapter 8815-1 to perform the diagnosis. Using a voltmeter, perform a voltage drop test by backprobing the (F856) 5 Volt Supply circuit at the MAP Sensor harness connector and by probing the appropriate terminal of the special tool #8815. Make sure the voltmeter leads are connected so that positive polarity is displayed on the voltmeter. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. Start the engine. Is the voltage below 0.5 volts? Yes Go to step 5 No Repair the (F856) 5 Volt Supply circuit for excessive resistance. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000)
5. (K1) MAP SIGNAL CIRCUIT HIGH RESISTANCE Turn the ignition off. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install PCM Pinout Box 8815 along with the Adapter 8815-1 to perform the diagnosis. Using a voltmeter, perform a voltage drop test by backprobing the (K1) MAP Signal circuit at the MAP Sensor harness connector and by probing the appropriate terminal of the special tool #8815. Make sure the voltmeter leads are connected so that positive polarity is displayed on the voltmeter. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. Start the engine. Is the voltage below 0.5 volts? Yes Go to step 6 No Repair the (K1) MAP Signal circuit for excessive resistance. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000)
6. (K900) SENSOR GROUND CIRCUIT HIGH RESISTANCE Turn the ignition off. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install PCM Pinout Box 8815 along with the Adapter 8815-1 to perform the diagnosis. Using a voltmeter, perform a voltage drop test by backprobing the (K900) Sensor Ground circuit at the MAP Sensor harness connector and by probing the appropriate terminal of the special tool #8815. Make sure the voltmeter leads are connected so that positive polarity is displayed on the voltmeter. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. Start the engine. Is the voltage below 0.5 volts? Yes Go to step 7 No Repair the (K900) Sensor Ground circuit for excessive resistance. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000)
7. MAP SENSOR Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the MAP Sensor and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Refer to any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) No Replace the MAP Sensor. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000)

1. OXYGEN SENSOR, WIRING, OR CONNECTORS NOTE: Diagnose and repair any O2 sensor or rationality DTCs before proceeding with this test. NOTE: When performing this procedure as part of another diagnostic process, it may be necessary to repeat this test for all of the oxygen sensors on the vehicle. Turn the ignition off. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Oxygen sensor and the PCM. Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Turn the ignition on. Monitor the scan tool data relative to the sensor and wiggle test the wiring and connectors. Look for the data to change or for a DTC to set during the wiggle test. If necessary, check each sensor circuit for high resistance or a shorted condition. Were any problems found? Yes Repair as necessary. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) No Go to step 2
2. OXYGEN SENSOR VOLTAGE Start the engine and allow it to reach normal operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. With a scan tool, monitor all O2 Sensor voltage readings. Is the voltage switching between 2.5 and 3.4 volts for all O2 sensors? Yes Go to step 3 Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) No Go to step 4
3. O2 SENSOR HEATER OPERATION Turn the ignition off. NOTE: Wait a minimum of 10 minutes to allow the O2 Sensor to cool down before continuing the test. Allow the O2 Sensor voltage to stabilize at 5.0 volts. Turn the ignition on. With a scan tool, actuate the O2 Sensor heater. With the scan tool, monitor O2 Sensor voltage for at least 2 minutes. Does the voltage stay above 4.5 volts? Yes Go to step 4 Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) No Test complete.
4. O2 SENSOR Turn the ignition off. NOTE: Check for contaminants that may cause improper O2 Sensor operation, such as contaminated fuel, unapproved silicone, or evidence of oil or coolant. Disconnect the O2 Sensor harness connector. Turn the ignition on. With a scan tool, monitor the O2 Sensor voltage. NOTE: The voltage should be approximately 5.0 volts with the connector disconnected. Connect a jumper wire between the signal circuit and the return circuit in the O2 Sensor harness connector. NOTE: The voltage should drop from 5.0 volts to 2.5 volts with the jumper wire in place. Is the O2 Sensor voltage displayed on the scan tool as described? Yes Replace the O2 Sensor. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) No Go to step 5
5. O2 SENSOR SIGNAL CIRCUIT Using the wiring diagram/schematic as a guide, inspect the O2 Sensor Signal circuit and connectors between the O2 sensor and the PCM. Check the O2 Sensor signal circuit for a short to ground, open circuit, short to voltage, or high resistance. Were any problems found? Yes Repair as necessary. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) No Go to step 6
6. O2 SENSOR RETURN CIRCUIT Using the wiring diagram/schematic as a guide, inspect the O2 Sensor Return circuit and connectors between the O2 sensor and the PCM. Check the O2 Sensor return circuit for a short to ground, open circuit, short to voltage or high resistance. Were any problems found? Yes Repair as necessary. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) No Go to step 7
7. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the O2 sensor and the PCM. Look 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 the components tested in this procedure and wiggle test the wiring and connectors. Look for the data to change or for a DTC to set during the wiggle test. Refer to any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000)

Scheme 474

For complete wiring diagrams, refer to SYSTEM WIRING DIAGRAMS .

Scheme 475

Scheme 476

Scheme 477

Scheme 478

1. PCM WIRING OR CONNECTORS Turn the ignition off. Using the wiring diagram/schematic as a guide, inspect the wiring and each connector at the PCM. Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Were any problems found? Yes Repair as necessary. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) No Go to step 2
2. CHECKING THE PCM GROUND CIRCUITS Turn the ignition off. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install PCM Pinout Box 8815 to perform diagnosis. Using a 12 volt test light connected to 12 volts, check the PCM ground circuits. Wiggle test each circuit during the test to check for an intermittent open in the circuit. NOTE: The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery. Is the test light illuminated and bright? Yes Go to step 3 . No Repair the PCM ground circuit(s) for an open circuit or high resistance. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000)
3. CHECKING THE PCM FUSED B+ CIRCUITS CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install PCM Pinout Box 8815 to perform diagnosis. Using a 12 volt test light connected to ground, check the PCM power supply circuits. Wiggle test each circuit during the test to check for an intermittent open in the circuit. NOTE: The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery. Is the test light illuminated and bright? Yes Go to step 4 . No Repair the PCM power supply circuit(s) for an open circuit or high resistance. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000)
4. CHECKING THE PCM FUSED IGNITION SWITCH CIRCUITS Turn the ignition on. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install PCM Pinout Box 8815 to perform diagnosis. Using a 12 volt test light connected to ground, check the PCM (F202) and (F1) Fused Ignition circuits. Wiggle test each circuit during the test to check for an intermittent open or short in the circuit. NOTE: The test light should be illuminated and bright with the ignition on and not illuminated with the ignition off. Compare the brightness to that of a direct connection to the battery. Is the test light illuminated as described above? Yes Go to step 5 . No Repair the open or short in the Fused Ignition Switch circuits. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000)
5. CHECKING THE PCM FUSED IGNITION SWITCH CIRCUITS Turn the ignition on. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install PCM Pinout Box 8815 to perform diagnosis. Using a 12 volt test light connected to ground, check the PCM Fused Ignition Switch circuits. Check each circuit with the ignition off, ignition on, engine not running position, and during cranking. Wiggle test each circuit during the test to check for an intermittent open in the circuit. NOTE: The test light should be illuminated and bright with the ignition on and not illuminated with the ignition off. Compare the brightness to that of a direct connection to the battery. Is the test light illuminated as described above? Yes Test complete. No Repair the PCM Fused Ignition Switch circuit(s) for as necessary. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000)

1. COMPARE TEMPERATURE SENSOR VALUES Turn the ignition off. Allow the vehicle to sit with the ignition off in an environment where the temperature is consistent and above -7° C (19.4° F) until the engine coolant temperature is equal to ambient temperature. Turn the ignition on. Using a thermometer, measure and record the underhood and ambient temperatures. With a scan tool, read the ambient air temperature (AAT), engine coolant temperature (ECT), engine oil temperature (EOT) and intake air temperature (IAT) sensor values, as applicable. Are all temperature sensor values within 10° C (18° F) of the thermometer and the other sensor values? Yes Test complete. No Go to step 2
2. TEMPERATURE SENSOR WIRING OR CONNECTORS NOTE: Perform the following procedures for each sensor that was not within the specified range as described in the previous step. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the temperature sensor(s) and the applicable control module. Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Turn the ignition on. Monitor the scan tool data relative to the sensor(s) and wiggle test the wiring and connectors. Look for the data to change or for a DTC to set during the wiggle test. Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) . No Go to step 3
3. SENSOR VOLTAGE Turn the ignition off. Disconnect the temperature sensor harness connector. Connect a jumper wire between the signal circuit and the sensor ground circuit in the sensor harness connector. Turn the ignition on. With a scan tool, read the sensor voltage. NOTE: The sensor voltage should be approximately 0.0 volts (plus or minus .1 volt) with the jumper wire in place. Does the scan tool display the voltage as described above? Yes Go to step 4 No Go to step 5
4. TEMPERATURE SENSOR Turn the ignition off. Remove the jumper wire from between the signal circuit and the sensor ground circuit in the sensor harness connector. Turn the ignition on. With a scan tool, read the sensor voltage. NOTE: The sensor voltage should be approximately 5.0 volts (plus or minus .1 of a volt) with the connector disconnected. Does the scan tool display the voltage as described above? Yes Replace the sensor. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) . No Go to step 5
5. SIGNAL CIRCUIT SHORTED TO GROUND Turn the ignition off. Measure the resistance between ground and the signal circuit in the sensor harness connector. Is the resistance above 100 Ohms? Yes Go to step 6 No Repair the signal circuit for a short to ground. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) .
6. SIGNAL CIRCUIT SHORTED TO SENSOR GROUND CIRCUIT Measure the resistance between the signal circuit and the sensor ground circuit in the sensor harness connector. Is the resistance above 100 Ohms? Yes Go to step 7 No Repair the signal circuit for a short to the sensor ground circuit. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) .
7. SIGNAL CIRCUIT HIGH RESISTANCE Turn the ignition off. Connect the temperature sensor harness connector. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install PCM Pinout Box 8815 along with the Adapter 8815-1 to perform the diagnosis. Using a voltmeter, perform a voltage drop test by backprobing the signal circuit at the sensor harness connector and at the applicable module connector (or by probing the appropriate terminal of the PCM Pinout Box 8815). Make sure the voltmeter leads are connected so that positive polarity is displayed on the voltmeter. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. Start the engine. Is the voltage below 0.5 of a volt? Yes Go to step 8 No Repair the signal circuit for high resistance. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) .
8. SENSOR GROUND CIRCUIT HIGH RESISTANCE Turn the ignition off. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install PCM Pinout Box 8815 along with the Adapter 8815-1 to perform the diagnosis. Using a voltmeter, perform a voltage drop test by backprobing the sensor ground circuit at the sensor harness connector and at the applicable module connector (or by probing the appropriate terminal of the PCM Pinout Box 8815). Make sure the voltmeter leads are connected so that positive polarity is displayed on the voltmeter. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. Start the engine. Is the voltage below 0.5 of a volt? Yes Go to step 9 No Repair the sensor ground circuit for high resistance. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) .
9. MODULE Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the sensor and the applicable control module. Refer to the system schematic. Look 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. Perform any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) . No Replace the applicable control module in accordance with the Service Information. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) .

1. INTERMITTENT NO RESPONSE CONDITION NOTE: Verify that the IOD fuse is installed and not open. If the fuse is open, check the circuit for a short to ground. NOTE: The battery must be fully charged and in good condition. An undercharged battery may produce invalid test results. NOTE: The battery cables must be clean and fastened properly. The chassis ground must be clean and fastened properly. NOTE: The scan tool (including the cable) must be operating properly for the results of this test to be valid. NOTE: With the scan tool, check the FCM for any active CAN C hardware DTCs, and perform appropriate diagnostic procedure before continuing with this test. NOTE: On the scan tool screen, a red X next to a module indicates that the module is not active (communicating) on the Bus network. A green check indicates that the module is active on the Bus network. Turn the ignition on. With the scan tool, select ECU view. Is the PCM active (communicating) on the BUS? Yes The PCM no response condition is not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors for any problems that would result in an intermittent no response condition. No Go to step 2
2. (K51) ASD RELAY CONTROL CIRCUIT OPERATION Turn the ignition off. Remove the Auto Shutdown Relay. Using a 12 volt test light connected to 12 volts, check the (K51) ASD Relay Control circuit at the Auto Shutdown Relay connector. Turn the ignition on. NOTE: The test light should illuminate for approximately 3 seconds and then turn off, this is considered normal operation. Is the test light illuminated and bright as described above? Yes Go to step 9 No Go to step 3
3. (K51) ASD RELAY CONTROL CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the C3 Powertrain Control Module (PCM) harness connector. Turn the ignition on. Measure the voltage of the (K51) ASD Relay Control circuit at the Auto Shutdown Relay connector. Is there any voltage present? Yes Repair the short to voltage in the (K51) ASD Relay Control circuit. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) No Go to step 4
4. (K51) ASD RELAY CONTROL CIRCUIT SHORTED TO GROUND Turn the ignition off. Measure the resistance between ground and the (K51) ASD Relay Control circuit at the Auto Shutdown Relay connector. Is the resistance below 100 ohms? Yes Repair the short to ground in the (K51) ASD Relay Control circuit. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) No Go to step 5
5. (K51) ASD RELAY CONTROL CIRCUIT OPEN OR HIGH RESISTANCE CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals, resulting in poor terminal to pin connection. Install PCM Pinout Box 8815 to perform diagnosis. Measure the resistance of the (K51) ASD Relay Control between the Auto Shutdown Relay connector and the appropriate terminal of special tool #8815. Is the resistance below 5.0 ohms? Yes Go to step 6 No Repair the open or high resistance in the (K51) ASD Relay Control circuit. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000)
6. FUSED B+ CIRCUIT(S) OPEN OR HIGH RESISTANCE CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install PCM Pinout Box 8815 to perform diagnosis. Using a 12 volt test light connected to ground check the Fused B+ circuit(s) at the appropriate terminal of special tool #8815. NOTE: The test light should be illuminated and bright. Compared the brightness to that of a direct connection to the battery. Is the test light illuminated and bright? Yes Go to step 7 No Repair the Fused B+ circuit(s) as necessary. Inspect and replace fuses as necessary. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000)
7. FUSED IGNITION SWITCH OUTPUT CIRCUIT(S) OPEN OR HIGH RESISTANCE Turn the ignition on. Using a 12 volt test light connected to ground, check the Fused Ignition Switch Output circuit(s) in the appropriate terminal(s) of special tool #8815. NOTE: The test light should be illuminated and bright. Compared the brightness to that of a direct connection to the battery. Is the test light illuminated and bright? Yes Go to step 8 No Repair the Fused Ignition Switch Output circuit(s) as necessary. Inspect and replace fuses as necessary. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000)
8. PCM GROUND CIRCUITS Turn the ignition off. Using a 12 volt test light connected to battery voltage, check the PCM ground circuits in the appropriate terminals of special tool #8815. NOTE: The test light should be illuminated and bright. Compared the brightness to that of a direct connection to the battery. Is the test light illuminated and bright? Yes Go to step 11 No Repair the PCM ground circuit(s) as necessary. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000)
9. (D65) CAN C BUS (+) CIRCUIT OPEN OR HIGH RESISTANCE Turn the ignition off. Disconnect the C1 TIPM harness connector. Measure the resistance of the (D65) CAN C Bus (+) circuit between the TIPM connector and the appropriate terminal of the special tool #8815. Is the resistance below 5.0 ohms? Yes Go to step 10 No Repair the open or high resistance in the (D65) CAN C Bus (+) circuit. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000)
10. (D64) CAN C BUS (-) CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance of the (D64) CAN C Bus (-) circuit between the C1 TIPM harness connector and the appropriate terminal of the special tool #8815. Is the resistance below 5.0 ohms? Yes Go to step 11 No Repair the open or high resistance in the (D64) CAN C Bus (-) circuit. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000)
11. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Auto Shutdown Relay and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Refer to any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000)

1. UNDERCHARGED BATTERY NOTE: Diagnose any 5 Volt Supply DTCs before continuing NOTE: The battery must be fully charged and in good condition. An undercharged battery may produce invalid test results. Test the battery in accordance with the Service Information. Were any problems found? Yes Charge or replace the battery as necessary and retest. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) . No Go to step 2
2. SYSTEM DTCS PRESENT NOTE: If the battery was low, make sure the battery is properly charged and attempt to start the vehicle. Crank the engine for 15 seconds, 3 consecutive times. This will allow any DTCs to set that may have been erased due to a dead battery. With the scan tool, select System DTCs to read DTCs in all modules. If any DTCs are present, perform the appropriate diagnostic procedure before continuing with this test. If a no response condition is detected in any module, refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Diagnosis and Testing»(ref-353626) and perform the appropriate NO RESPONSE diagnostic procedure. Were any problems found? Yes Perform the appropriate diagnostic procedure and repair as necessary. If any pending DTCs are detected, perform the diagnostic procedure as if the DTC is active. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) . No Go to step 3
3. PCM POWER OR GROUND CIRCUIT OPEN OR HIGH RESISTANCE Turn the ignition off. Disconnect the PCM harness connector(s). Using a 12-volt test light, check all PCM power and ground circuits. NOTE: The test light must be illuminated and bright. Compare the brightness to that of a direct connection to the battery. Is the test light illuminated and bright when checking each of the PCM power and ground circuits? Yes Repair the PCM power or ground circuit for an open circuit or high resistance. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) . No Go to step 4
4. OPEN FUSE(S) Inspect all of the fuses in the TIPM. If any open fuses are found, check the related circuit(s) for a short to ground or high resistance. Were any problems found? Yes Repair as necessary. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) . No Go to step 5
5. CHECKING THE FUEL DELIVERY SYSTEM NOTE: Verify that the fuel tank is not empty before continuing. Perform the diagnostic procedure for «CHECKING THE FUEL DELIVERY SYSTEM»(ref-353653-S15015346202010011200000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) . No Go to step 6
6. FUEL CONTAMINATION Check the fuel system for contamination in accordance with the Service Information. Was any evidence of fuel contamination found? Yes Clean and repair the fuel system as necessary in accordance with the Service Information. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) . No Go to step 7
7. CHECKING THE IGNITION COIL OPERATION Perform the diagnostic procedure for «CHECKING THE IGNITION COIL OPERATION»(ref-353653-S15804414552010011200000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) . No Go to step 8
8. CHECKING THE ENGINE MECHANICAL SYSTEM Perform the diagnostic procedure for «CHECKING THE ENGINE MECHANICAL SYSTEM»(ref-353653-S04177627462010011200000) . Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) . No Test complete. Refer to any Technical Service Bulletins that may apply.

FUEL DELIVERY SYSTEM OUTPUT - FLOW TEST

For complete wiring diagrams, refer to SYSTEM WIRING DIAGRAMS .

Scheme 479

Scheme 480

Scheme 481

Scheme 482

1. CHECK FUEL DELIVERY SYSTEM FOR LEAKS AND DAMAGE WARNING: The fuel system is under a constant pressure (even with the engine off). Before testing or servicing any fuel system hose, fitting, or line, the fuel system pressure must be released. Failure to follow these instructions can result in possible serious or fatal injury. Visually and physically inspect the fuel delivery system for external leaks and damage. Is the system leaking or damaged? Yes Repair or replace as necessary. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) . No Go to step 2
2. INSTALL APPROPRIATE FUEL LINE ADAPTERS/FITTING FROM THE GAS AND DIESEL FUEL PRESSURE/DECAY TESTER 8978A Turn the ignition off. WARNING: The fuel system is under a constant pressure (even with the engine off). Before testing or servicing any fuel system hose, fitting, or line, the fuel system pressure must be released. Failure to follow these instructions can result in possible serious or fatal injury. Disconnect the frame rail fuel supply line connector between the fuel supply line and the fuel rail. Install the appropriate Fuel Line Adapters/Fitting from the Gas and Diesel Fuel Pressure/Decay Tester 8978A. Proceed Go to step 3
3. INSTALL FUEL PRESSURE GAUGE ASSEMBLY WARNING: The fuel system is under a constant pressure (even with the engine off). Before testing or servicing any fuel system hose, fitting, or line, the fuel system pressure must be released. Failure to follow these instructions can result in possible serious or fatal injury. Connect the Gas and Diesel Fuel Pressure/Decay Tester 8978A, Fuel Inlet Hose (1) and Fuel Outlet Hose (2) to the Fuel Line Adapters/Fitting. Connect special tool Drain Extension Hose 535680 (3) to the Fuel Pressure Gauge Assembly Drain Hose (5). Connect Reservoir Assembly 534960 (4) to Drain Extension Hose 535680 (3). WARNING: To reduce the risk of fire and possible serious or fatal injury, place Reservoir Assembly 534960 (4) on the floor and out of the way so that it is not a trip hazard. Proceed Go to step 4
4. CHECK FUEL PRESSURE WARNING: The fuel system is under a constant pressure (even with the engine off). Before testing or servicing any fuel system hose, fitting, or line, the fuel system pressure must be released. Failure to follow these instructions can result in possible serious or fatal injury. Perform the following procedure to purge air from the system: Open the Fuel System Isolation Valve (1). Close the Flow Test Valve (2). Ignition on, engine not running. With the scan tool, actuate the fuel pump. Open the Flow Test Valve (1) for 10 seconds, then close the Valve. CAUTION: Stop All Actuations. Turn the ignition off. Disconnect, empty and then reconnect the Reservoir Assembly. Turn the ignition on, wait five seconds, turn the ignition off and then wait one minute before proceeding. Read the Fuel Pressure Gauge (3) and record the reading. Non SRT-4 fuel pressure specification is 407 kPa +/- 34 kPa (59 psi +/- 5 psi). SRT-4 fuel pressure specification is 552 kPa +/- 34 kPa (80 psi +/- 5 psi). Is the fuel pressure within specifications? Yes Go to step 5 No Perform the «CHECKING THE FUEL DELIVERY SYSTEM»(ref-353653-S15015346202010011200000) diagnostic procedure.
5. CHECK FUEL DELIVERY SYSTEM OUTPUT WARNING: The fuel system is under a constant pressure (even with the engine off). Before testing or servicing any fuel system hose, fitting, or line, the fuel system pressure must be released. Failure to follow these instructions can result in possible serious or fatal injury. Ignition on, engine not running. With the scan tool, actuate the fuel pump. Open the Flow Test Valve (1) for 20 seconds, then close the Valve. CAUTION: Stop All Actuations. Turn the ignition off. Measure the amount of fuel in the Reservoir Assembly (2). The fuel output specification is ml/s x 20 seconds = fuel flow in ml. FUEL FLOW ENGINE ml/s ml per 20 Seconds 4 Cylinder and 6 Cylinder 20.8333A 417 8 Cylinder 38.88889 778 SRT-4 50 1000

1. CHECKING FUEL PRESSURE Turn the ignition off. WARNING: The fuel system is under a constant pressure (even with the engine off). Before testing or servicing any fuel system hose, fitting or line, the fuel system pressure must be released. Failure to follow these instructions can result in possible serious or fatal injury. Install a fuel pressure gauge at the engine. Ignition on, engine not running. With a scan tool, actuate the Fuel Pump and observe the fuel pressure gauge. NOTE: NOTE: Fuel pressure specification is 407 kPa +/- 34 kPa (59 psi +/- 5 psi). Choose a conclusion that best matches your fuel pressure reading. Below Specification Go to step 2 Within Specification Go to step 4
2. RESTRICTED FUEL SUPPLY LINE Turn the ignition off. WARNING: The fuel system is under a constant pressure (even with the engine off). Before testing or servicing any fuel system hose, fitting or line, the fuel system pressure must be released. Failure to follow these instructions can result in possible serious or fatal injury. Raise vehicle on hoist, and disconnect the fuel supply line at the fuel pump module. Install special tool #6539 (5/16") #6631(3/8") fuel line adapter and the fuel pressure gauge between the fuel supply line and the fuel pump module. Ignition on, engine not running. With the scan tool, actuate the Fuel Pump and observe the fuel pressure gauge. NOTE: Fuel pressure specification is 407 kPa +/- 34 kPa (59 psi +/- 5 psi). Is the fuel pressure within specification? Yes Visually and physically inspect the fuel supply lines between the fuel tank and the fuel rail. Repair/replace as necessary. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) No Go to step 3
3. CHECKING THE FUEL PUMP INLET Turn the ignition off. WARNING: The fuel system is under a constant pressure (even with the engine off). Before testing or servicing any fuel system hose, fitting or line, the fuel system pressure must be released. Failure to follow these instructions can result in possible serious or fatal injury. Remove the Fuel Pump Module and Fuel Tank Module (if equipped), inspect the Fuel Pump Inlet and the bottom of the fuel tank for debris that could cause the fuel pump inlet to be plugged. Is the Fuel Inlet Strainer plugged? Yes Repair/Replace as necessary. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) No Replace the Fuel Pump Module. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000)
4. FUEL PUMP MODULE NOTE: Before continuing visually and physically inspect the fuel delivery system for external leaks or damage. Repair/replace as necessary. Turn the ignition off. WARNING: The fuel system is under a constant pressure (even with the engine off). Before testing or servicing any fuel system hose, fitting or line, the fuel system pressure must be released. Failure to follow these instructions can result in possible serious or fatal injury. Install special tool #6539 (5/16") or #6631 (3/8") fuel line adapter. Install the fuel pressure gauge. Start the engine and allow the fuel system to reach maximum pressure. Turn the ignition off. NOTE: Fuel specification is 407 kPa +/- 34 kPa (59 psi +/- 5 psi). Using special tool #C4390, Hose Clamp Pliers, pinch the rubber fuel line between the fuel pressure gauge and the engine. Monitor the fuel pressure gauge for a minimum of 5 minutes. NOTE: The pressure should not fall below 241 kPa (35 psi). Does the fuel pressure drop below 241 kPa (35 psi)? Yes Replace Fuel Pump Module. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) No Go to step 5
5. FUEL INJECTOR(S) WARNING: The fuel system is under a constant pressure (even with the engine off). Before testing or servicing any fuel system hose, fitting or line, the fuel system pressure must be released. Failure to follow these instructions can result in possible serious or fatal injury. Remove special tool #C4390. Start the engine and allow the fuel system to reach maximum pressure. Turn the ignition off. NOTE: Fuel specification is 407 kPa +/- 34 kPa (59 psi +/- 5 psi). Using special tool #C4390, Hose Clamp Pliers, pinch the rubber fuel line between the fuel pressure gauge and fuel pump module. Monitor the fuel pressure gauge for a minimum of 5 minutes. NOTE: The pressure should not fall below 241 kPa (35 psi) Does the fuel pressure drop below 241 kPa (35 psi)? Yes Replace the leaking fuel injectors. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000) No Check the fuel for contaminants. Perform the PCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353603-S03528494482010011200000)