Contents Section: Ignition System All sections

Ignition Control - Electrical Diagnostics Chrysler Town & Country V

Ignition System 5 illustrations ~1072 words

DIAGNOSTIC CODE INDEX

DTCDescription
B2101IGNITION RUN/START INPUT CIRCUIT LOW
B2102IGNITION RUN/START HIGH
B2185IGNITION UNLOCK RUN/START CONTROL CIRCUIT HIGH

DIAGNOSTIC CODE INDEX

Scheme 1

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: With the ignition switch on.

Set Conditions

  1. Set Condition: The Wireless Ignition Node (WIN) has detected the ignition switch input voltage below a calibrated value.

Possible Causes

Possible Causes
(F20) IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT SHORTED TO GROUND
WIRELESS IGNITION NODE (WIN)

Scheme 2

Scheme 2: Diagnostic Test
  1. CHECK FOR ACTIVE DTC NOTE: Check to make sure the battery and charging system are operating properly. Battery and/or charging system problems may cause these DTC's to set. NOTE: Diagnose any related Powertrain DTC(s) before continuing. Turn the ignition on. With a scan tool, read, record and erase WIN DTC(s). Perform 5 ignition cycles, leaving the ignition switch on for a minimum of 30 seconds per cycle. Using the scan tool, read WIN DTC(s). Does the scan tool display this DTC as active? Yes Go to 2 . No The condition that caused this code to set is not present at this time. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Perform «BODY VERIFICATION TEST VER-1»(/chrysler/town-country/v-2007-2010/remont/communication-devices/#electronic-control-modules-electrical-diagnostics) .
  2. WIRELESS IGNITION NODE (WIN) NOTE: Check the related fuse(s) to the (F20) Ignition Switch Output (Run-Start) circuit. If a fuse is found to be open, repair the circuit for a shorted condition. Turn the ignition off. Disconnect the WIN harness connector. Turn the ignition on. Using the scan tool, read WIN DTC(s). Does the scan tool display this DTC as active? Yes Go to 3 . No Replace the WIN 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) .
  3. (F20) IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the TIPM C7 harness connector. Turn the ignition on. Using a 12-volt test light connected to battery, probe the (F20) Ignition Switch Output (Run-Start) circuit in the WIN harness connector. Does the test light illuminate brightly? Yes Repair the (F20) Ignition Switch Output (Run-Start) circuit for a short to ground. Perform «BODY VERIFICATION TEST VER-1»(/chrysler/town-country/v-2007-2010/remont/communication-devices/#electronic-control-modules-electrical-diagnostics) . No Go to 4 .
  4. CHECK TIPM FUSE Turn the ignition off. Check the M27 fuse in the TIPM. Is the fuse blown? Yes Replace the 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 Replace the Ignition Switch 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) .

For complete wiring diagrams, refer to

SYSTEM WIRING DIAGRAMS for Grand Caravan.

SYSTEM WIRING DIAGRAMS for Town & Country.

  1. When Monitored: With the ignition switch on.
  1. Set Condition: The Wireless Ignition Node (WIN) has detected the ignition switch input voltage above a calibrated value.
Possible Causes
(F20) IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT
WIRELESS IGNITION NODE (WIN)

Scheme 3

Scheme 3: Diagnostic Test
  1. CHECK FOR ACTIVE DTC NOTE: Check to make sure the battery and charging system are operating properly. Battery and/or charging system problems may cause these DTC's to set. NOTE: Diagnose any related Powertrain DTC(s) before continuing. Turn the ignition on. With a scan tool, read, record and erase WIN DTC(s). Perform 5 ignition cycles, leaving the ignition switch on for a minimum of 30 seconds per cycle. Using the scan tool, read WIN DTC(s). Does the scan tool display this DTC as active? Yes Go to 2 . No The condition that caused this code to set is not present at this time. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Perform «BODY VERIFICATION TEST VER-1»(/chrysler/town-country/v-2007-2010/remont/communication-devices/#electronic-control-modules-electrical-diagnostics) .
  2. CHECK THE WIRELESS IGNITION NODE (WIN) FOR AN INTERNAL SHORT TO VOLTAGE Turn the ignition off. Disconnect the WIN harness connector. With the scan tool, read DTCs. Is the DTC active? Yes Go to 3 . No Replace the WIN, 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) .
  3. (F20) IGNITION SWITCH OUTPUT (RUN-START) SHORTED TO BATTERY VOLTAGE Turn the ignition off. Disconnect the TIPM C7 harness connector. Using a 12-volt test light connected to ground, probe the (F20) Ignition Switch Output (Run-Start) circuit in the WIN harness connector. Does the test light illuminate brightly? Yes Repair the (F20) Ignition Switch Output (Run-Start) circuit for an short to battery voltage. Perform «BODY VERIFICATION TEST VER-1»(/chrysler/town-country/v-2007-2010/remont/communication-devices/#electronic-control-modules-electrical-diagnostics) . No Replace the Ignition Switch 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) .

Scheme 4

Scheme 4: Circuit Schematic

For complete wiring diagrams, refer to

SYSTEM WIRING DIAGRAMS for Grand Caravan.

SYSTEM WIRING DIAGRAMS for Town & Country.

  1. When Monitored: With the ignition off.
  1. Set Condition: The Totally Integrated Power Module (TIPM) detects voltage on the (F921) Ignition Switch Output (Unlock-Run-Start) circuit with the ignition off.
Possible Causes
A/C HEATER CONTROL
COMPASS MODULE
HEADLAMP LEVELING MODULE
LIFTGATE FLASHLIGHTS
PARK ASSIST MODULE
(F921) IGNITION SWITCH OUTPUT (UNLOCK-RUN-START) CIRCUIT SHORT TO VOLTAGE
TIPM

Scheme 5

Scheme 5: Diagnostic Test
  1. CHECK FOR ACTIVE DTC Turn the ignition on. With the scan tool, read the active DTC's. Cycle the ignition switch from off to on, leaving the ignition on for a minimum of 30 seconds. With the scan tool, read the active DTC's. Does the scan tool display this DTC as active? Yes Go to 2 . No If the DTC is stored, check for an intermittent condition. Using the wiring diagram/schematic as a guide, visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.
  2. CHECK EACH (F921) CIRCUIT COMPONENT FOR AN INTERNAL SHORT TO VOLTAGE NOTE: Using the wiring diagram as a guide disconnect each component on the (F921) circuit one at a time while checking for the DTC to become stored. Repeat these steps for each component. Turn the ignition off. Disconnect the component harness connector. With the scan tool, read DTCs. Is the DTC still active with all circuit components disconnected? Yes Go to 3 . No Replace the component, that when disconnected caused the DTC to switch from active to stored, 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) .
  3. (F921) IGNITION SWITCH OUTPUT (UNLOCK-RUN-START) CIRCUIT SHORT TO VOLTAGE Turn the ignition off. Disconnect the TIPM C6 harness connector. Using a 12-volt test light connected to ground check the (F921) Ignition Switch Output (Unlock-Run-Start) circuit. Does the test light illuminate brightly? Yes Repair the (F921) Ignition Switch Output (Unlock-Run-Start) 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 Replace the 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) .