Driveability - Gas - Non-Dtc Based Diagnostics Chrysler Town & Country V рестайлинг

Scheme 1

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article.

Scheme 2

Scheme 3

Scheme 4

Scheme 5

Scheme 6

Scheme 7

1. GENERATOR FULL FIELD TEST NOTE: Diagnose and repair any generator sense or field control circuit DTCs before proceeding with this test. Start the engine and allow it to reach 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 can result in personal injury or death. With the scan tool, perform the Generator Full Field test. Follow the instructions displayed on the scan tool. Monitor the system (battery) voltage and the generator sense voltage on the scan tool while performing the test. NOTE: With the engine running, the difference between the system (battery) voltage and the generator sense voltage should be below.2 Volts. NOTE: With the generator field fully actuated, the system (battery) voltage should be above 14.0 Volts. NOTE: With the generator field actuated off, the system (battery) voltage should be below 13.0 Volts and eventually drop as battery load is increased. Did the system voltage change as described above during the Generator Full Field test? Yes Test complete. No Go to step 2
2. CHARGING SYSTEM INSPECTION Inspect and test the battery in accordance with the Service Information. Inspect the generator drive belt for proper alignment and adjustment. Inspect the vehicle for aftermarket accessories that may exceed the generator system output. Inspect the fuses in the IPM. If an open fuse is found, use the wire diagram/schematics as a guide and inspect the wiring and connectors for a damaged or shorted circuit. Were any problems found? Yes Repair as necessary. No Go to step 3
3. BATTERY POSITIVE (+) CIRCUIT HIGH RESISTANCE NOTE: Make sure all testing equipment and cables are clear of any engine parts before starting the engine. 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 can result in possible serious or fatal injury. Measure the voltage between the B (+) Terminal at the Generator and the Battery Positive (+) Post. Is the voltage below 0.4 Volts? Yes Go to step 4 No Repair the battery positive (+) circuit between the generator and battery for high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) .
4. GENERATOR CASE GROUND HIGH RESISTANCE NOTE: Make sure all testing equipment and cables are clear of any engine parts before starting the engine. 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 can result in possible serious or fatal injury. Measure the voltage between the Generator case and the Battery Negative (-) post. Is the voltage below 0.1 Volt? Yes Go to step 5 No Repair the Generator Case ground for high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) .
5. (A109) FUSED B(+) 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 Miller Special Tool #8815 along with the #8815A to perform the diagnosis. Using a Voltmeter, perform a voltage drop test by probing the battery positive (+) terminal and the appropriate terminal(s) of the PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). 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 can 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 (A109) Fused B(+) circuit(s) for high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) .
6. (A804) GENERATOR SENSE 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 Miller Special Tool #8815 along with the #8815A to perform the diagnosis. Using a Voltmeter, perform a voltage drop test by backprobing the (A804) Generator Sense circuit at the Generator harness connector and probing the appropriate terminal of the PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). 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 can 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 (A804) Generator Sense circuit for high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) .
7. (K125) GEN FIELD CONTROL 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 Miller Special Tool #8815 along with the #8815A to perform the diagnosis. Using a Voltmeter, perform a voltage drop test by backprobing the (K125) Gen Field Control circuit at the Generator harness connector and probing the appropriate terminal of the PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). 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 can result in personal injury or death. Start the engine. Is the voltage below 0.5 Volts? Yes Go to step 8 No Repair the (K125) Gen Field Control circuit for high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) .
8. GENERATOR Turn the ignition off. Disconnect the Generator harness connector. Connect a 12 Volt test light connected between ground and the (K125) Gen Field Control circuit in the Generator harness connector. Turn the ignition on. With the scan tool, actuate the Alternator Field Control State to toggle. NOTE: The test light should toggle on and off with the actuation. NOTE: If a DTC is active, the actuation test may not be allowed by the PCM. If may be necessary to clear DTCs before starting the actuation. Does the test light illuminate on and off with the actuation? Yes Replace the Generator in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) . No Go to step 9
9. (K125) GEN FIELD CONTROL CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the Powertrain Control Module (PCM) connector. Turn the ignition on. Measure the voltage of the (K125) Gen Field Control circuit in the Generator harness connector. Is there any voltage present? Yes Repair the (K125) Gen Field Control circuit for a short to voltage. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) . No Go to step 10
10. (K125) GEN FIELD CONTROL CIRCUIT SHORTED TO GROUND Turn the ignition off. Measure the resistance between ground and the (K125) Gen Field Control circuit in the Generator harness connector. Is the resistance below 100 Ohms? Yes Repair the (K125) Gen Field Control circuit for a short to ground. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) . No Go to step 11
11. (K125) GEN FIELD 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 Miller Special Tool 8815 to perform diagnosis. Measure the resistance of the (K125) Gen Field Control circuit between the Generator harness connector and the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 5.0 Ohms? Yes Go to step 12 No Repair the (K125) Gen Field Control circuit for an open circuit or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) .
12. CHECKING THE PCM POWER AND GROUND CIRCUITS Perform the diagnostic procedure for CHECKING THE PCM POWER AND GROUND CIRCUITS. Were any problems found? Yes Repair the PCM power and ground circuit(s) as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) . No Go to step 13
13. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Generator 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. Perform any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) .

Scheme 8

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article.

DIAGNOSTIC TEST

1. RADIATOR FAN HIGH SPEED 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 2 control state. Does the Cooling Fan operate? Yes Go to step 2 No Go to step 3
2. RADIATOR FAN LOW SPEED RELAY OPERATION With the scan tool, actuate the Radiator Fan 1 control state. Does the Cooling Fan operate? Yes Test complete. No Go to step 8
3. RADIATOR FAN HIGH SPEED RELAY Turn the ignition off. Verify the Radiator Fan High Speed Relay is installed properly and that the terminals are making a tight fit. Remove the Radiator Fan High Speed Relay and substitute it with a known good Relay. Ignition on, engine not running. With a scan tool, actuate the Radiator Fan 2 control state. Is the Cooling Fan operating? Yes Replace the Radiator Fan High Speed Relay. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/chrysler/town-country/v-2010-2016/remont/communication-devices/#totally-integrated-power-module-tipm-body-verification-test) . No Go to step 4
4. (Z904) GROUND CIRCUIT OPEN Turn the ignition off. Disconnect the Radiator Cooling Fan Module harness connector. Using a 12-volt test light connected to voltage, check the (Z904) Ground circuit in the Cooling Fan Module 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 «STANDARD PROCEDURE»(/chrysler/town-country/v-2010-2016/remont/communication-devices/#totally-integrated-power-module-tipm-body-verification-test) .
5. RADIATOR COOLING FAN MODULE Turn the ignition on. Using a 12-volt test light connected to ground, check the (N173) Radiator Fan Control circuit in the Radiator Cooling Fan Module harness connector. With the scan tool, actuate the Radiator Fan 2 control state. 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 «STANDARD PROCEDURE»(/chrysler/town-country/v-2010-2016/remont/communication-devices/#totally-integrated-power-module-tipm-body-verification-test) . No Go to step 6
6. (N173) RAD FAN CONTROL 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 «STANDARD PROCEDURE»(/chrysler/town-country/v-2010-2016/remont/communication-devices/#totally-integrated-power-module-tipm-body-verification-test) . 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 Speed 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 «STANDARD PROCEDURE»(/chrysler/town-country/v-2010-2016/remont/communication-devices/#totally-integrated-power-module-tipm-body-verification-test) .
8. RADIATOR FAN LOW SPEED RELAY Turn the ignition off. Verify the Radiator Fan Low Speed Relay is installed properly and that the terminals are making a tight fit. Remove the Radiator Fan Low Speed Relay and substitute it with a known good Relay. Ignition on, engine not running. With a scan tool, actuate the Radiator Fan 1 control state. Is the Cooling Fan operating? Yes Replace the Radiator Fan Low Speed Relay. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/chrysler/town-country/v-2010-2016/remont/communication-devices/#totally-integrated-power-module-tipm-body-verification-test) . No Go to step 9
9. RADIATOR COOLING FAN MODULE Turn the ignition off. Disconnect the Radiator Cooling Fan Module harness connector. Turn the ignition on. Using a 12-volt test light connected to ground, check the (N173) Radiator Fan Control circuit in the Radiator Cooling Fan Module harness connector. With the scan tool, actuate the Radiator Fan 1 control state. 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 «STANDARD PROCEDURE»(/chrysler/town-country/v-2010-2016/remont/communication-devices/#totally-integrated-power-module-tipm-body-verification-test) . 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) Radiator Fan Low Speed Control Output circuit in the Radiator Fan Resistor harness connector. With the scan tool, actuate the Radiator Fan 1 control state. 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 «STANDARD PROCEDURE»(/chrysler/town-country/v-2010-2016/remont/communication-devices/#totally-integrated-power-module-tipm-body-verification-test) . No Repair the open or high resistance in the (N24) Rad Fan Control Relay Output circuit. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/chrysler/town-country/v-2010-2016/remont/communication-devices/#totally-integrated-power-module-tipm-body-verification-test) .
12. (N23) RADIATOR FAN LOW SPEED CONTROL OUTPUT CIRCUIT OPEN OR HIGH RESISTANCE Turn the ignition off. Disconnect the C3 TIPM harness connector. Measure the resistance in the (N23) Radiator Fan Low Speed 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) Radiator Fan Low Speed Control Output circuit. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/chrysler/town-country/v-2010-2016/remont/communication-devices/#totally-integrated-power-module-tipm-body-verification-test) .
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 «STANDARD PROCEDURE»(/chrysler/town-country/v-2010-2016/remont/communication-devices/#totally-integrated-power-module-tipm-body-verification-test) . No Replace the Totally Integrated Power Module (TIPM) in accordance with the Service Information. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(/chrysler/town-country/v-2010-2016/remont/communication-devices/#totally-integrated-power-module-tipm-body-verification-test) .

Scheme 9

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article.

Scheme 10

Scheme 11

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 POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) . 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 personal injury including extreme burns, scalding, 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 POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) . 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 personal injury including extreme burns, scalding, 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 can 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 POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) . 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 personal injury including extreme burns, scalding, 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 can 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 POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) . 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 the PCM Pinout Box along with the Adapter 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). 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 can 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 POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) .
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 the PCM Pinout Box along with the Adapter 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). 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 can 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 POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) .
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. Perform any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) . No Replace the Engine Coolant Temperature Sensor in accordance with the service information. Refer to «SENSOR, COOLANT TEMPERATURE, REMOVAL»(/chrysler/town-country/v-2010-2016/remont/accessory-drive-belts/#engine-cooling-system) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) .

CHECKING THE ENGINE MECHANICAL SYSTEM

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article.

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 Were any problems found? Yes Repair as necessary in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) . No Test Complete.

CHECKING THE EVAPORATIVE SYSTEM FOR LEAKS

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article.

Scheme 12

Scheme 13

Scheme 14

1. EVAPORATIVE SYSTEM INSPECTION Turn the ignition off. Raise the vehicle as necessary in accordance with the Service Information. Visually and physically inspect the entire Evaporative Emission System for any of the following conditions: Holes or cracks Loose seal points Evidence of damaged components Incorrect routing of hoses or tubes Loose or missing fuel filler cap Improper installation of the fuel filler cap Damaged locking tabs on cap and/or fill tube Damaged seal points on cap and/or fill tube Fuel cap gasket seal missing or damaged Were any problems found? Yes Repair as necessary. Perform the PCM VERIFICATION Test. Refer to «PCM VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#28l-diesel-pcm-verification-test-pcmectcm-programming-pre-diagnostic-troubleshooting-procedure-intermittent-dtc) . No Go to step 2
2. VERIFY EVAPORATIVE EMISSION LEAK WARNING: Keep lit cigarettes, sparks, flames, and other ignition sources away from the test area to prevent the ignition of explosive gases. Keep the test area well ventilated. Failure to do so may result in possible serious or fatal injury. Turn the ignition off. To continue testing, you will need Evaporative Emission Leak Detector (EELD) (special tool #8404B, Kit, EELD And Accessory). NOTE: The fuel tank should have between 20% and 80% of fuel tank capacity to properly test the EVAP system. Connect the red power lead of EELD to the battery positive terminal and the black ground lead to battery negative terminal. Block the vent hose of the EVAP Canister. Connect shop air to the EELD. Set the smoke/air control switch to AIR. Insert the tester's AIR supply tip (clear hose) into the.040 orifice on the tester's control panel. Press the remote smoke/air start button. Position the red flag on the air flow meter so it is aligned with the indicator ball. When the calibration is complete, release the remote button. The EELD flow meter is now calibrated in liters per minute. Install the service port adapter (special tool #8404-14, Adapter, Evaporative Service Port) on the vehicle's service port (if equipped) or install the special tool #8404-ADP, Smoke Machine Adapters into the filter line. Connect the AIR supply hose from the EELD to the service port (if equipped) or to the special tool #8404-ADP, Smoke Machine Adapters adapter. Press the remote button to activate AIR flow. NOTE: Larger volume fuel tanks, lower fuel levels, or vehicles equipped with a Flow Management Valve may indicate high flow and will require four to five minutes to fill. Compare the flow meter indicator ball reading to the red flag. ABOVE the red flag indicates a leak present. BELOW the red flag indicates a sealed system. Is the indicator ball above the red flag? Yes Go to step 3 No Refer to the Freeze Frame data, if applicable. If the Freeze Frame data indicates that the vehicle was in motion when the DTC was set, verify that all hoses are connected properly. Perform the PCM VERIFICATION TEST. Refer to «PCM VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#28l-diesel-pcm-verification-test-pcmectcm-programming-pre-diagnostic-troubleshooting-procedure-intermittent-dtc) .
3. EVAPORATIVE EMISSION LEAK DETECTION NOTE: A thorough inspection of the EVAP system hoses, tubes, and connections may save time in diagnosis. Look for physical damage or signs of wetness at connections. The strong smell of fuel vapors may aid diagnosis also. To continue testing, you will need Evaporative Emissions Leak Detector (EELD) (special tool #8404B, Kit, EELD And Accessory). Remove the AIR supply hose from the service port (if equipped) or from the adapter (special tool #8404-ADP, Smoke Machine Adapters). Connect the SMOKE supply tip (black hose) to the service port (if equipped) or to the adapter (special tool #8404-ADP, Smoke Machine Adapters). Set the smoke/air control switch to SMOKE. NOTE: The flow meter indicator ball will not move in the smoke mode. Press the remote smoke/air start button. NOTE: Make sure that smoke has filled the EVAP system by continuing to press the remote smoke/air start button, remove the vehicle fuel cap, and wait for the smoke to exit. Once smoke is detected, reinstall the fuel cap. NOTE: For the best results, introduce smoke into the system for an additional 60 seconds and continue introducing smoke at 15 second intervals, as necessary. While still holding the remote smoke/air start button, use the white light (special tool #8404-CLL, Light, White) to follow the EVAP system path, and look for the source of the leak as indicated by exiting smoke. If a leak is concealed from view (at the top of the fuel tank, for example), release the remote smoke/air start button, and use the ultraviolet (UV) black light (special tool #8404-UVL, Light, UV) and the UV goggles (special tool #8404-20, Goggles, Yellow) to look for residual traces of dye that is left behind by the smoke. The exiting smoke deposits a residual fluid that is either bright green or bright yellow when viewed with a UV light. Were any problems found? Yes Repair or replace the leaking component as necessary. Perform the PCM VERIFICATION TEST. Refer to «PCM VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#28l-diesel-pcm-verification-test-pcmectcm-programming-pre-diagnostic-troubleshooting-procedure-intermittent-dtc) . No Go to step 4
4. CHECKING THE GAS CAP AND FUEL FILLER TUBE Thoroughly check the gas cap and filler tube area for leaks. Was a leak found at the gas cap or filler tube? Yes Go to step 5 No Go to step 6
5. GAS CAP OR FUEL FILLER TUBE Remove the SMOKE supply tip (black hose) from the service port (if equipped) or from the special tool #8404-ADP, Smoke Machine Adapters adapter. Install leak check adapter (special tool #8382, Adapter, Leak Check) (1/4 turn cap) or fuel tank adapter (special tool #6922, Adapter, Fuel Tank) (screw cap) and leak check adapter (special tool #8399, Adapter, Leak Check) (secondary seal depressor) and repeat test 4. Was a leak found at the gas cap adapter? Yes Replace the fuel filler tube assembly. Perform the PCM VERIFICATION TEST. Refer to «PCM VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#28l-diesel-pcm-verification-test-pcmectcm-programming-pre-diagnostic-troubleshooting-procedure-intermittent-dtc) . No Replace the gas cap. Perform the PCM VERIFICATION TEST. Refer to «PCM VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#28l-diesel-pcm-verification-test-pcmectcm-programming-pre-diagnostic-troubleshooting-procedure-intermittent-dtc) .
6. CHECKING FOR EVAPORATIVE SYSTEM LEAKS IN ZONE 1 NOTE: For testing purposes, the EVAP System is divided into three zones. A leak from any of these zones can cause a DTC to set. The lists in the following steps below specify possible leak points in one of the specific zones. Using the list below, check each of the components in Zone 1 of the evaporative system for leaks: 1 Fuel Cap 2 Recirculation Check Valve 3 Vapor Recirculation Line 4 Signal Vapor Line for FVM 5 Flow Management Valve 6 Fuel Tank to Canister Vapor Line 7 Fuel Tank Vent (Check Valve) 8 Vapor Line to Canister 9 Flow Control Orifice 10 Control Valve 11 Liquid Trap 12 Fuel Tank 13 Check Valve 14 Fuel Fill Tube to Tank connector 15 Fuel Fill Tube Damaged or disconnected components Were any problems found? Yes Repair or replace the leaking component as necessary. Perform the PCM VERIFICATION TEST. Refer to «PCM VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#28l-diesel-pcm-verification-test-pcmectcm-programming-pre-diagnostic-troubleshooting-procedure-intermittent-dtc) . No Go to step 7
7. CHECKING FOR EVAPORATIVE SYSTEM LEAKS IN ZONE 2 NOTE: For testing purposes, the EVAP System is divided into three zones. A leak from any of these zones can cause a DTC to set. The lists in the following steps below specify possible leak points in one of the specific zones. Using the list below, check each of the components in Zone 2 of the evaporative system for leaks: 1 Filter 2 ESIM Switch 3 Canister Vent Line 4 EVAP Canister 5 Chassis Purge Valve 6 Fuel Tank to Canister Vapor Line connection 7 EVAP Purge connection Were any problems found? Yes Repair or replace the leaking component as necessary. Perform the PCM VERIFICATION TEST. Refer to «PCM VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#28l-diesel-pcm-verification-test-pcmectcm-programming-pre-diagnostic-troubleshooting-procedure-intermittent-dtc) . No Go to step 8
8. CHECKING FOR EVAPORATIVE SYSTEM LEAKS IN ZONE 3 NOTE: For testing purposes, the EVAP System is divided into three zones. A leak from any of these zones can cause a DTC to set. The lists in the following steps below specify possible leak points in one of the specific zones. Using the list below, check each of the components in Zone 3 of the evaporative system for leaks: 1 EVAP Purge Vacuum Line 2 Connection to Chassis Line 3 Connection to Canister 4 Chassis Purge Line 5 EVAP Purge Vacuum Line 6 Connection to EVAP Purge Harness 7 Chassis EVAP Purge Line connection to Engine Vacuum 8 EVAP Purge Valve 9 Service Port Were any problems found? Yes Repair or replace the leaking component as necessary. Perform the PCM VERIFICATION TEST. Refer to «PCM VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#28l-diesel-pcm-verification-test-pcmectcm-programming-pre-diagnostic-troubleshooting-procedure-intermittent-dtc) . No Test complete.

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 (special tool #8404-ECT, Exhaust Cone, Truck) 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 special tool #8404-ECT, Exhaust Cone, Truck 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 45.72 cm (18 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 «PCM VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#28l-diesel-pcm-verification-test-pcmectcm-programming-pre-diagnostic-troubleshooting-procedure-intermittent-dtc) . No Test complete.

CHECKING THE FUEL DELIVERY SYSTEM

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article.

Scheme 15

1. FUEL PUMP OPERATION Ignition on, engine not running. With the scan tool, actuate the Fuel System test. NOTE: It may be necessary to use a mechanics stethoscope in the next step. Listen for fuel pump operation at the fuel tank. Does the Fuel Pump operate? Yes Go to step 2 No Go to step 5 CAUTION: Stop all actuations.
2. 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. Choose a conclusion that best matches your fuel pressure reading. Below Specification Go to step 3 Within Specification Test Complete. Above Specification Replace the fuel pressure regulator. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) .
3. RESTRICTED FUEL SUPPLY LINE 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. Turn the ignition off. Disconnect the Fuel Pressure Decay Tester (special tool #8978A, Decay Tool, Fuel). Raise the vehicle on a hoist and disconnect the fuel pressure line at the fuel pump module. Install the Fuel Pressure Decay Tester (special tool #8978A, Decay Tool, Fuel) between the fuel supply line and the fuel pump module. Ignition on, engine not running. Using the scan tool, actuate the Fuel System test and observe the fuel pressure gauge. CAUTION: Stop all actuations. Is the fuel pressure within specification now? Yes Repair/replace fuel supply line as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) . No Go to step 4
4. CHECKING FUEL INLET STRAINER 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. Turn the ignition off. Remove the Fuel Pump Module and inspect the Fuel Inlet Strainer. Refer to «MODULE, FUEL PUMP, REMOVAL»(/chrysler/town-country/v-2010-2016/remont/fuel-system/#fuel-system) . Is the Fuel Inlet Strainer plugged? Yes Replace the Fuel Pump Inlet Strainer. Refer to «MODULE, FUEL PUMP, REMOVAL»(/chrysler/town-country/v-2010-2016/remont/fuel-system/#fuel-system) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) . No Replace the Fuel Pump Module. Refer to «MODULE, FUEL PUMP, REMOVAL»(/chrysler/town-country/v-2010-2016/remont/fuel-system/#fuel-system) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) .
5. FUEL PUMP OUTPUT CIRCUIT OPEN Turn the ignition off. Disconnect the Fuel Pump Module harness connector. Ignition on, engine not running. With the scan tool, actuate the Fuel System test. Using a 12-volt test light connected to ground, probe the Fuel Pump Output circuit. NOTE: The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery. Does the test light illuminate brightly? Yes Replace the Fuel Pump Module. Refer to «MODULE, FUEL PUMP, REMOVAL»(/chrysler/town-country/v-2010-2016/remont/fuel-system/#fuel-system) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) . No Repair the excessive resistance or open in the Fuel Pump Relay Output circuit. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) .

CHECKING THE IGNITION COIL OPERATION

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article.

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 POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) . 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: Some 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 some engines, it may be 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. 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 ASD Relay to on. Using a 12 volt test light connected to ground, check the 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 ASD Relay output circuit for an open circuit or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) .
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 can 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 five 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 POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) . No Go to step 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 the PCM Pinout Box 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 the PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 5.0 Ohms? Yes Go to step 6 No Repair the Ignition Coil control circuit for an open circuit or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) .
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 POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(/chrysler/town-country/v-2010-2016/remont/communication-devices/#electronic-control-modules-service-information) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) .
7. SPARK PLUG(S) Turn the ignition off. Remove the spark plug. 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 POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) . No Test Complete.

Scheme 16

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article.

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 POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) . 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 can 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 POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) . 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 POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) . No Test complete.
4. (K856) 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 the PCM Pinout Box to perform diagnosis. Using a voltmeter, perform a voltage drop test by backprobing the (K856) 5 Volt Supply circuit at the MAP Sensor harness connector and by probing the appropriate terminal of the PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). 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 can result in possible serious or fatal injury. Start the engine. Is the voltage below 0.5 volt? Yes Go to step 5 No Repair the (K856) 5 Volt Supply circuit for excessive resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) .
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 the PCM Pinout Box to perform 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). 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 can result in possible serious or fatal injury. Start the engine. Is the voltage below 0.5 volt? Yes Go to step 6 No Repair the (K1) MAP Signal circuit for excessive resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) .
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 the PCM Pinout Box to perform 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 PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). 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 can result in possible serious or fatal injury. Start the engine. Is the voltage below 0.5 volt? Yes Go to step 7 No Repair the (K900) Sensor Ground circuit for excessive resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) .
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. Perform any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) . No Replace the MAP Sensor in accordance with the service information. Refer to «SENSOR, MANIFOLD AIR PRESSURE (MAP), REMOVAL»(/chrysler/town-country/v-2010-2016/remont/fuel-system/#fuel-system) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) .

CHECKING THE PCM POWER AND GROUND CIRCUITS

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article.

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 POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) . No Go to step 2
2. CHECKING THE PCM GROUND CIRCUITS Turn the ignition off. Disconnect the PCM C1 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 the GPEC Diagnostic Adaptor to perform the diagnosis. Connect the special tool #10436, Adapter, GPEC Diagnostic. Using a 12 volt test light connected to 12 volts, probe the PCM ground circuits at the GPEC Adaptor. 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 or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) .
3. CHECK THE (A209) BATTERY SUPPLY CIRCUIT Using a 12 volt test light connected to ground, probe the (A209) Battery Supply circuit. Wiggle test the 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 (A209) Battery Supply circuit for an open or high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) .
4. CHECK THE (F202) FUSED IGNITION RUN/START CIRCUIT Turn the ignition on. Using a 12 volt test light connected to ground, probe the (F202) Fused Ignition Run/Start circuit. Check the circuit with the ignition off, ignition on, engine not running position and during cranking. Wiggle test the 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 Go to step 5 No Repair the (F202) Fused Ignition Run/Start circuit as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) .
5. CHECK THE (F1) FUSED IGNITION RUN/START CIRCUIT Turn the ignition on. Using a 12 volt test light connected to ground, probe the (F1) Fused Ignition Run/Start circuit. Check the circuit with the ignition off, ignition on, engine not running position and during cranking. Wiggle test the 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 (F1) Fused Ignition Run/Start circuit as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) .

CHECKING THE OXYGEN SENSOR OPERATION

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article.

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 POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) . 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 can result in personal injury or death. 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 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 two minutes. Does the voltage stay above 4.5 volts? Yes Go to step 4 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 in accordance with the service information. Refer to «SENSOR, OXYGEN, INSTALLATION»(/chrysler/town-country/v-2010-2016/remont/fuel-system/#fuel-system) . Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) . 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 POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) . 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 POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) . 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. Perform any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) .

START AND STALL CONDITION

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article.

Scheme 17

Scheme 18

1. CHECKING DTCS NOTE: Before continuing with this procedure, review the TSBs that may be related to a start and stall condition. It may be helpful to review Secondary Indicators, if a two trip DTC(s) is present, drive the vehicle to try and mature the DTC to Active. Ignition on, engine not running. With a scan tool, read DTCs. Are any DTCs present? Yes Perform the appropriate diagnostic procedures. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes). No Go to step 2
2. CHECKING VEHICLE THEFT DTCS NOTE: If you are unable to communicate with the Wireless Ignition Node (WIN). Refer to «DIAGNOSIS AND TESTING»(/chrysler/town-country/v-2010-2016/remont/communication-devices/#communication-non-dtc-based-diagnostics). With the scan tool, read the WIN codes. Are there any WIN DTCs? Yes Refer to «DIAGNOSIS AND TESTING»(/chrysler/town-country/v-2010-2016/remont/communication-devices/#wireless-ignition-node-win-electrical-diagnostics) and perform the appropriate diagnostic procedure. No Go to step 3
3. CAM/CRANK VERIFICATION Using a scan tool, under OBDII Monitors, read and record the Cam Crank Synchronization Event Monitors. Using this table, determine if any of the values are present in the Cam Crank Synchronization Event Monitor display. CAM EVENT STATUS CM1ULTRH CM1ULTLH CM1TOL1 CM1LOW CM1ULZERO CM1MFS CM1MFR CM1IF CM1ONLY CM2ULTRH CM2ULTLH CM2TOL1 CM2LOW CM2ULZERO CM2MFS CM2MFR CM2IF CM2ONLY CM3ULTRH CM3ULTLH CM3TOL1 CM3LOW CM3ULZERO CM3MFS CM3MFR CM3IF CM3ONLY CM4ULTRH CM4ULTLH CM4TOL1 CM4LOW CM4ULZERO CM4MFS CM4MFR CM4IF CM4ONLY SYULCAM - - - - - CRANK EVENT STATUS CKULTRH CKULTLH CKLOW CKUL60M2 CKMFS CKMFR CK1IF CKULGTRH CKULGTLH CKULGTVR CKULGTVL CKUL220 CKUL40 SYULCRK SYNOCLCK - - - - - - SYNC EVENT STATUS SYULTOL SYTOLF - - - - - Are any of these values present in the Cam Crank Synchronization Event Monitor display? CAM EVENT STATUS ONLY Go to step 7 CRANK EVENT STATUS ONLY Go to step 14 CAM, CKP and/or SYNC EVENT STATUS Go to step 21 None Present Go to step 4
4. SPARK PLUG(S) 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. Turn the ignition off. Remove the spark plug. 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 POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes). No Go to step 5
5. POSSIBLE CAUSES OF START AND STALL CONDITION The following items should be checked as a possible cause for a start and stall condition: Perform any Technical Service Bulletins (TSBs) that may apply to the symptom. The exhaust system must be free of any restrictions. The engine compression must be within specifications. The engine valve timing must be within specifications. The engine must be free from vacuum leaks. The throttle body must be free of carbon buildup and dirt. Cracked spark plugs, carbon track on spark plugs, coil and coil boot. Do any of the above conditions exist? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes). No Go to step 6
6. FUEL PUMP DELIVERY Verify that the Fuel tank is not empty before continuing. Follow the diagnostics for Checking Fuel Delivery. Refer to «DIAGNOSIS AND TESTING»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#driveability-gas-non-dtc-based-diagnostics). Was the No Start condition solved after following the above diagnostic test? Yes Test Complete. No Check for contamination/water in the fuel. Make sure the fuel being used in this vehicle meets OEM Fuel Requirement. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes).
7. 5-VOLT SUPPLY CIRCUIT VOLTAGE (CMP) Turn the ignition off. Disconnect the Camshaft Position Sensor harness connector. Turn the ignition on. Measure the voltage of between the Sensor Ground circuit and the 5-volt Supply circuit in the Camshaft Position Sensor harness connector. Is the voltage 5.0 volts? Yes Go to step 8 No Repair the 5-volt Supply. NOTE: A battery disconnect must be performed to clear the Cam Crank Synchronization Events. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes).
8. SENSOR GROUND CIRCUIT TEST Turn the ignition off. Using a 12-volt test light connected to 12 volts, probe the Sensor Ground circuit in the Camshaft Position Sensor 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 9 No Repair the Ground Circuit. NOTE: A battery disconnect must be performed to clear the Cam Crank Synchronization Events. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes).
9. CMP SIGNAL Turn the ignition on. Measure the voltage of the CMP Signal circuit in the Camshaft Position Sensor harness connector. Is the voltage between 4.7 and 5.0 volts? Yes Go to step 13 No Go to step 10
10. CMP SIGNAL CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the Powertrain Control Module C2 harness connector. Turn the ignition on. Measure the voltage of the CMP Signal circuit in the Camshaft Position Sensor harness connector. Is there any voltage present? Yes Repair the CMP Signal circuit for a short to voltage. NOTE: A battery disconnect must be performed to clear the Cam Crank Synchronization Events. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes). No Go to step 11
11. CMP SIGNAL CIRCUIT SHORTED TO GROUND Turn the ignition off. Measure the resistance between ground and the CMP Signal circuit in the Camshaft Position Sensor harness connector. Is the resistance above 100 Ohms? Yes Go to step 12 No Repair the CMP Signal circuit for a short to ground. NOTE: A battery disconnect must be performed to clear the Cam Crank Synchronization Events. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes).
12. CMP SIGNAL 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 the PCM Pinout Box to perform diagnosis. Measure the resistance of the CMP Signal circuit between the Camshaft Position Sensor harness connector and the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 5.0 Ohms? Yes Go to step 24 No Repair the CMP Signal circuit for an open circuit or high resistance. NOTE: A battery disconnect must be performed to clear the Cam Crank Synchronization Events. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes).
13. CAMSHAFT POSITION SENSOR SIGNAL Turn the ignition off. (Scheme 17) is a depiction of typical scope patterns of the Cam (1) and Crank (2) sensors for 4, 6, and 8 cylinder engines. The square wave patterns are uniform and are identical to one another. The patterns must be evenly spread apart and at the same height. The larger gap pattern (signature) after the shorter wave forms are used for cylinder identification (Crank signal) and the distance between the series of slots (trigger) on the camshaft pulley (cam signal). Any variation of the pattern will indicate an issue with the sensor, wiring, or trigger (target) wheel. 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 the PCM Pinout Box along with the Adapter to perform the diagnosis. With a lab scope, probe the CMP Signal circuit in the appropriate terminal of the PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). 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 can result in possible serious or fatal injury. Start and allow the engine to run. Observe the lab scope screen. Compare the scope pattern with the ones in (Scheme 18). Pattern indicates a clean (good) square wave form that is identical to what the cam and crank should be. The square wave patterns are uniformed and are identical to one another. Two pulses joined together in the same spot on target. Indicates damage to the target (trigger) on the flex plate or broke tooth, runout in the target or large air gap between the sensor and the target wheel. Wide air gap or intermittent connection. Early signature, predominately at high speed. Large air gap between the sensor and the target wheel. Missed pulse. Possible burr or light damage to target or incorrect lateral position of the crank sensor to target (trigger). NOTE: If any of the above (except pattern 1) is displayed on the lab scope repair as necessary. Was the square wave found to match any of the above except pattern 1? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes). No Replace the Camshaft Position Sensors in accordance with the service information. NOTE: A battery disconnect must be performed to clear the Cam Crank Synchronization Events. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes).
14. 5-VOLT SUPPLY CIRCUIT VOLTAGE (CKP) Turn the ignition off. Disconnect the Crankshaft Position Sensor connector. Turn the ignition on. Measure the voltage of the 5-volt Supply circuit in the Crankshaft Position Sensor harness connector. Is the voltage 5.0 volts? Yes Go to step 15 No Repair the 5-volt Supply. NOTE: A battery disconnect must be performed to clear the Cam Crank Synchronization Events. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes).
15. SENSOR GROUND CIRCUIT TEST Turn the ignition off. Using a 12-volt test light connected to 12 volts, check the Sensor Ground circuit in the Crankshaft Position Sensor 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 16 No Repair the Ground Circuit. NOTE: A battery disconnect must be performed to clear the Cam Crank Synchronization Events. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes).
16. CKP SIGNAL Turn the ignition on. Measure the voltage of the CKP Signal circuit in the Crankshaft Position Sensor harness connector. Is the voltage between 4.7 and 5.0 volts? Yes Go to step 20 No Go to step 17
17. CKP SIGNAL CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the Powertrain Control Module (PCM) harness connector. Turn the ignition on. Measure the voltage of the CKP Signal circuit in the Crankshaft Position Sensor harness connector. Is there any voltage present? Yes Repair the CKP Signal circuit for a short to voltage. NOTE: A battery disconnect must be performed to clear the Cam Crank Synchronization Events. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes). No Go to step 18
18. CKP SIGNAL CIRCUIT SHORTED TO GROUND Turn the ignition off. Measure the resistance between ground and the CKP Signal circuit in the Crankshaft Position Sensor harness connector. Is the resistance above 100 Ohms? Yes Go to step 19 No Repair the CMP Signal circuit for a short to ground. NOTE: A battery disconnect must be performed to clear the Cam Crank Synchronization Events. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes).
19. CKP SIGNAL 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 the PCM Pinout Box to perform diagnosis. Measure the resistance of the CKP Signal circuit between the Camshaft Position Sensor harness connector and the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). Is the resistance below 5.0 Ohms? Yes Go to step 24 No Repair the CMP Signal circuit for an open circuit or high resistance. NOTE: A battery disconnect must be performed to clear the Cam Crank Synchronization Events. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes).
20. CRANKSHAFT POSITION SENSOR SIGNAL Turn the ignition off. see scheme 18 is a depiction of typical scope patterns of the Cam (1) and Crank (2) sensors for 4, 6, and 8 cylinder engines. The square wave patterns are uniform and are identical to one another. The patterns must be evenly spread apart and at the same height. The larger gap pattern (signature) after the shorter wave forms are used for cylinder identification (Crank signal) and the distance between the series of slots (trigger) on the camshaft pulley (cam signal). Any variation of the pattern will indicate an issue with the sensor, wiring, and trigger (target) wheel. 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 the PCM Pinout Box along with the Adapter to perform the diagnosis. With a lab scope, probe the CKP Signal circuit in the appropriate terminal of the PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position). 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 can result in possible serious or fatal injury. Start and allow the engine to run. Observe the lab scope screen. Compare the scope pattern with the ones in (Scheme 18). Pattern indicates a clean (good) square wave form that is identical to what the cam and crank should be. The square wave patterns are uniformed and are identical to one another. Two pulses joined together in the same spot on target. Indicates damage to the target (trigger) on the flex plate or broke tooth, runout in the target or large air gap between the sensor and the target wheel. Wide air gap or intermittent connection. Early signature, predominately at high speed. Large air gap between the sensor and the target wheel. Missed pulse. Possible burr or light damage to target or incorrect lateral position of the crank sensor to target (trigger). NOTE: If any of the above (except pattern 1) is displayed on the lab scope repair as necessary. Was the square wave found to match any of the above except pattern 1? Yes Repair as necessary. NOTE: A battery disconnect must be performed to clear the Cam Crank Synchronization Events. Perform the PCM VERIFICATION TEST. Refer to «PCM VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#28l-diesel-pcm-verification-test-pcmectcm-programming-pre-diagnostic-troubleshooting-procedure-intermittent-dtc). No Replace the Crankshaft Position Sensor in accordance with service information. NOTE: A battery disconnect must be performed to clear the Cam Crank Synchronization Events. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes).
21. VALVE TIMING Make sure the valve timing is within specification. Refer to the appropriate diagnostic procedure. Was the valve timing within specification? Yes Go to step 22 No Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes).
22. 5-VOLT SUPPLY CIRCUIT VOLTAGE (CMP/CKP) NOTE: The 5-volt Supply circuit must be present at both CMP and CKP Sensors. Turn the ignition off. Disconnect the Camshaft Position Sensor harness connector. Turn the ignition on. Measure the voltage of the 5-volt Supply circuit in the Camshaft Position Sensor harness connector. Repeat the above test at the Crankshaft Position Sensor (Crankshaft Position Sensor harness connector measure). Is the voltage 5.0 volts at each sensor? Yes Go to step 23 No Repair the 5-volt Supply circuit(s) as necessary. NOTE: A battery disconnect must be performed to clear the Cam Crank Synchronization Events. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes).
23. SENSOR GROUND CIRCUIT NOTE: The Ground circuit must be present at both CMP and CKP Sensors. Turn the ignition off. Using a 12-volt test light connected to 12 volts, probe the Sensor Ground circuit in the Camshaft Position Sensor harness connector. Repeat the above test at the Crankshaft Position Sensor (Crankshaft Position Sensor harness connector measure). 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 both the Camshaft Position Sensor and Crankshaft Position Sensor in accordance with the Service Information. NOTE: A battery disconnect must be performed to clear the Cam Crank Synchronization Events. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes). No Repair the Ground Circuit(s) as necessary. NOTE: A battery disconnect must be performed to clear the Cam Crank Synchronization Events. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes).
24. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Camshaft Position 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. 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. NOTE: A battery disconnect must be performed to clear the Cam Crank Synchronization Events. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes). No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes).

CHECKING THE TEMPERATURE SENSORS

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article.

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 POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) . 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 volt) with the connector disconnected. Does the scan tool display the voltage as described above? Yes Replace the sensor. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) . 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 POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) .
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 POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) .
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 the PCM Pinout Box along with the Adapter 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 (special tool #8815A, Kit, NGC, 38 Position). 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 can result in possible serious or fatal injury. Start the engine. Is the voltage below 0.5 volt? Yes Go to step 8 No Repair the signal circuit for high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) .
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 the PCM Pinout Box along with the Adapter 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 (special tool #8815A, Kit, NGC, 38 Position). 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 can result in possible serious or fatal injury. Start the engine. Is the voltage below 0.5 volts? Yes Go to step 9 No Repair the sensor ground circuit for high resistance. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) .
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 POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) . No Replace the applicable control module in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. Refer to «POWERTRAIN VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#36l-intermittent-condition-pcmecm-reprogramming-gas-pre-diagnostic-troubleshooting-procedure-powertrain-verification-tes) .

FUEL DELIVERY SYSTEM OUTPUT - FLOW TEST

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article.

Scheme 19

Scheme 20

Scheme 21

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 «PCM VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#28l-diesel-pcm-verification-test-pcmectcm-programming-pre-diagnostic-troubleshooting-procedure-intermittent-dtc) . 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 (special tool #8978A, Decay Tool, Fuel). 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 (special tool #8978A, Decay Tool, Fuel), 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 Refer to «DIAGNOSIS AND TESTING»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#driveability-gas-non-dtc-based-diagnostics) and perform the CHECKING THE FUEL DELIVERY SYSTEM 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 Does the amount of fuel in the reservoir meet or exceed the specification? Yes Test complete. No Refer to «DIAGNOSIS AND TESTING»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#driveability-gas-non-dtc-based-diagnostics) and perform the CHECKING THE FUEL DELIVERY SYSTEM diagnostic procedure.

FUEL PRESSURE LEAK DOWN

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article.

Possible Causes

Scheme 22

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 / replace as necessary. Perform the PCM VERIFICATION TEST. Refer to «PCM VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#28l-diesel-pcm-verification-test-pcmectcm-programming-pre-diagnostic-troubleshooting-procedure-intermittent-dtc) . No Go to step 2
2. INSTALL APPROPRIATE FUEL LINE ADAPTERS / FITTING FROM 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 Gas and Diesel Fuel Pressure/Decay Tester (special tool #8978A, Decay Tool, Fuel). 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 Fuel Pressure Gauge Assembly Fuel Inlet Hose (special tool #8978-1, Gauge, Fuel Pressure Assembly) (1) and Fuel Outlet Hose (2) to the Fuel Line Adapters / Fitting. Connect Drain Extension Hose 535680 (3) to the Fuel Pressure Gauge Assembly Drain Hose (5). Connect the Reservoir Assembly 534960 (4) to the Drain Extension Hose 535680 (3). WARNING: To reduce the risk of fire and serious 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 1 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 diagnostic procedure as directed.
5. CHECK FUEL DELIVERY SYSTEM FOR LEAK DOWN 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. Close the Fuel System Isolation Valve (1) and then wait five minutes before proceeding. Read the Fuel Inlet (2) and Fuel Outlet (3) Pressure Gauges. The pressure should not drop more than 10 psi on either gauge. Does the fuel pressure drop more than 10 psi? Yes - On Fuel Inlet Gauge (1) Replace the fuel pump module. Perform the PCM VERIFICATION TEST. Refer to «PCM VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#28l-diesel-pcm-verification-test-pcmectcm-programming-pre-diagnostic-troubleshooting-procedure-intermittent-dtc) . Yes - On Fuel Outlet Gauge (2) Replace the leaking fuel injector(s). Perform the PCM VERIFICATION TEST. Refer to «PCM VERIFICATION TEST»(/chrysler/town-country/v-2010-2016/remont/testing-diagnostics/#28l-diesel-pcm-verification-test-pcmectcm-programming-pre-diagnostic-troubleshooting-procedure-intermittent-dtc) . No If directed here by another test, return to that test. Otherwise, test complete.

See also:
• POWERTRAIN VERIFICATION TEST
• STANDARD PROCEDURE
• SENSOR, COOLANT TEMPERATURE, REMOVAL
• PCM VERIFICATION TEST
• MODULE, FUEL PUMP, REMOVAL
• MODULE, POWERTRAIN CONTROL, REMOVAL
• DIAGNOSIS AND TESTING
• DIAGNOSIS AND TESTING
• DIAGNOSIS AND TESTING