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Starting System - Electrical Diagnostics Chrysler Town & Country V

Starter 4 illustrations ~1037 words

Scheme 1

Scheme 1: Circuit Schematic
Scheme 1: Circuit Schematic

Additional Wiring

For complete wiring diagrams refer to

SYSTEM WIRING DIAGRAMS for Grand Caravan.

SYSTEM WIRING DIAGRAMS for Town & Country.

Monitor Conditions

  1. When Monitored: Continuously

Set Conditions

  1. Set Condition: When the TIPM senses the Hood Ajar Switch Sense circuit is open this code will set.

Possible Causes

Possible Causes
(G931) SENSOR GROUND CIRCUIT OPEN
(G70) HOOD AJAR SWITCH SENSE CIRCUIT SHORT TO VOLTAGE
(G70) HOOD AJAR SWITCH SENSE CIRCUIT OPEN
HOOD AJAR SWITCH OPEN
TOTALLY INTEGRATED POWER MODULE (TIPM)

Scheme 2

Scheme 2: Diagnostic Test
Scheme 2: Diagnostic Test

Scheme 3

Scheme 3
Scheme 3

Scheme 4

Scheme 4
Scheme 4
  1. TEST FOR INTERMITTENT CONDITION NOTE: Open the hood and ensure the Hood Ajar Switch is connected before proceeding With the scan tool, record and erase DTC's Close the hood. Cycle the ignition from on to off. Turn the ignition on. Open then close the hood. With the scan tool, read DTC's. Does the scan tool display B1820-HOOD AJAR INPUT CIRCUIT HIGH? Yes Go To 2 . No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform «BODY VERIFICATION TEST VER-1»(/chrysler/town-country/v-2007-2010/remont/communication-devices/#electronic-control-modules-electrical-diagnostics) .
  2. HOOD AJAR SWITCH OPEN Disconnect the Hood Ajar Switch harness connector. Depress the plunger of the hood ajar switch and measure the resistance between the two terminals of the switch. Is the resistance approximately 1K ohms? Yes Go To 3 . No Replace the Hood Ajar Switch. Perform «BODY VERIFICATION TEST VER-1»(/chrysler/town-country/v-2007-2010/remont/communication-devices/#electronic-control-modules-electrical-diagnostics) .
  3. (G931) SENSOR GROUND CIRCUIT OPEN Using a 12-volt Test Light connected to 12-volts, check the (G931) Sensor Ground circuit. Does the test light illuminate? Yes Go To 4 . No Repair the (G931) Sensor Ground circuit for an open. Perform «BODY VERIFICATION TEST VER-1»(/chrysler/town-country/v-2007-2010/remont/communication-devices/#electronic-control-modules-electrical-diagnostics) .
  4. (G70) HOOD AJAR SWITCH SENSE CIRCUIT SHORT TO VOLTAGE Disconnect the TIPM C4 connector. Turn the ignition on. Measure the voltage between the (G70) Hood Ajar Switch Sense circuit and ground. Is there any voltage present? Yes Repair the (G70) Hood Ajar Switch Sense circuit for a short to voltage. Perform «BODY VERIFICATION TEST VER-1»(/chrysler/town-country/v-2007-2010/remont/communication-devices/#electronic-control-modules-electrical-diagnostics) . No Go To 5 .
  5. (G70) HOOD AJAR SWITCH SENSE CIRCUIT OPEN Turn the ignition off. Measure the resistance of the (G70) Hood Ajar Switch Sense circuit between the TIPM C4 connector and the Hood Ajar Switch connector. Is the resistance below 2.0 ohms? Yes Replace the Totally Integrated Module (TIPM) in accordance with the service information. Perform «BODY VERIFICATION TEST VER-1»(/chrysler/town-country/v-2007-2010/remont/communication-devices/#electronic-control-modules-electrical-diagnostics) . No Repair the (G70) Hood Ajar Switch Sense circuit for an open. Perform «BODY VERIFICATION TEST VER-1»(/chrysler/town-country/v-2007-2010/remont/communication-devices/#electronic-control-modules-electrical-diagnostics) .

For complete wiring diagrams refer to

SYSTEM WIRING DIAGRAMS for Grand Caravan.

SYSTEM WIRING DIAGRAMS for Town & Country.

Possible Causes
REMOTE START PARAMETERS NOT MET

Diagnostic Test

  1. REMOTE START PARAMETERS NOT MET / FAULTY COMPONENT Refer to the Data Display in the scan tool to view possible causes of the inoperative Remote Start System. Repair See table below for possible causes for the inoperative Remote Start System: ABORT BATTERY VOLTAGE HIGH BATTERY VOLTAGE LOW BRAKE PRESSED COOLANT TEMPERATURE HIGH CRANK NO START DRIVER DOOR AJAR EXCESSIVE GLOW PLUG TIME (DIESEL ONLY) FAILED COUNTER REACHED (START) HAZARD LAMPS (SWITCH PRESSED) HOOD AJAR IGNITION IN RUN/START IGNITION NOT IN LOCK IGNITION SNA (SIGNAL NOT AVAILABLE FROM OTHER MODULE) INVALID KEY KEY IN IGNITION LEFT REAR DOOR AJAR LOW RPM SHUTDOWN MIL ON NO AUTOMATIC TRANSMISSION NO HOOD SWITCH (INOPERATIVE) NORMAL TIME OUT CUSTOMER ACCESS NORMAL TIME OUT RUN MODE (15 MINUTES) NOT CONFIGURED NOT ENABLED NOT IN PARK OR NEUTRAL NOT PROGRAMMED OIL PRESSURE LOW PANIC MODE (ACTIVATED) PASSENGER DOOR AJAR POWER LOSS RIGHT REAR DOOR AJAR RKE OFF MESSAGE RPM TOO HIGH (EXCEEDS 2500) START COUNTER REACHED TRUNK/LIFTGATE AJAR VEHICLE SPEED HIGH VTA ALARMING If all of the previous items checked OK, and the remote starting system will not operate, refer to Starting - Electrical Diagnostics: REMOTE START INOPERATIVE-ANTENNA for further information. See «DIAGNOSIS AND TESTING»(/chrysler/town-country/v-2007-2010/remont/starter/#starting-system-electrical-diagnostics) .

For complete wiring diagrams refer to

SYSTEM WIRING DIAGRAMS for Grand Caravan.

SYSTEM WIRING DIAGRAMS for Town & Country.

Theory Of Operation

The customer may notice that the signal range of the Remote Keyless Entry (RKE) system is reduced. The RKE key fob may need to be closer than 3 meters (10 feet) before the functions available on the key fob will operate. This condition may be due to the RKE antenna. The diagnostic flow chart is provide as a diagnostic aid for dealer technician.

  1. LOCK/UNLOCK FUNCTION NOTE: For all RKE tests, the key must be out of the ignition. Does the Lock/Unlock function with the interior door switches? Yes Go To step 2 . No Perform Power Lock/Unlock System diagnosis.
  2. RKE FUNCTION AT 20 FEET Does the RKE Function at 20 feet? Yes Go To step 3 . No Go To step 4 .
  3. RKE FUNCTION AT 100 FEET Does the RKE Function at 100 feet? Yes Test complete. No Replace the antenna in accordance with the service information.
  4. WCM/WIN DTCS Does the WCMWIN display any DTCs? Yes Perform WCM/WIN diagnosis. No Go To step 5 .
  5. RKE FUNCTION INSIDE VEHICLE Sit inside the vehicle. Push the Key Fob RKE Lock/Unlock buttons. Does the RKE Lock/Unlock work? Yes Go To step 6 . No Go To step 9 .
  6. ANTENNA COAX CABLE NOT PROPERLY CONNECTED Pull on the Antenna COAX cable connector at the WIN. Did the connector come off without releasing the lock tab (not properly seated)? Yes Connect Antenna. Go To step 2 . No Go To step 7 .
  7. VERIFY COAX CONNECTION AT WIN Pull Antenna connector off WIN. Verify no bent pins. Are there any bent pins? Yes Replace antenna. Go To step 2 . No Go To step 8 .
  8. PINCHED WIRE Inspect the ANTENNA Lead COAX Cable for a pinched wire. Has the COAX cable been pinched or damaged? Yes Replace antenna. Go To step 2 . No Perform WIN diagnostics.
  9. RKE FUNCTION INSIDE VEHICLE Disconnect the Antenna COAX Cable lead connector to WIN. Sit inside the vehicle. Push the RKE Key Fob Lock/Unlock buttons. Does the RKE Lock/Unlock work? Yes Replace the antenna. No Go To step 10 .
  10. CHECK FOR 12 VOLTS AT WIN Connect the Antenna Lead to WIN. Disconnect the WIN harness connector. Using the appropriate wiring diagrams, check for Fused B+ at the WIN harness connector. Is Fused B+ present? Yes Perform WIN diagnostics. No Repair the appropriate circuits.

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