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Home >> Chrysler >> 2008 >> Pacifica Touring, FWD >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Ignition Control - Electrical Diagnostics >> Ignition Control-Electrical Diagnostics >> DTC Troubleshooting >> B2100-Ignition Run/Start Input Circuit/Performance >> Diagnostic Test
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Diagnostic Test

  1. CHECK FOR AN ACTIVE DTC 

    Turn the ignition on.

    With the scan tool, record and erase DTCs.

    Wait 30 seconds.

    With the scan tool, read DTCs.

    Does the scan tool display this DTC as active? 

    Yes 

    1. Go To  2.

    No 

    1. 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.
    2. Perform BODY VER TEST - VER 1 .
  2. BCM 
    Fig 1: Measuring The Voltage Of The Fused Ignition Switch Output Circuit
    GC0048744Courtesy of CHRYSLER LLC

    Turn the ignition off.

    Disconnect the BCM C1 harness connector.

    Turn the ignition on.

    Measure the voltage of the (F20) Fused Ignition Switch Output (Run/Start) circuit.

    Does the test light illuminate brightly? 

    Yes 

    1. Replace the BCM in accordance with the service information.
    2. Perform BODY VER TEST - VER 1 .

    No 

    1. Go To  3.
  3. (F20) FUSED IGNITION SWITCH OUTPUT (RUN/START) CIRCUIT SHORT TO GROUND 
    Fig 2: Measuring The Resistance Between Ground And The Fused Ignition Switch Output Circuit
    GC0048745Courtesy of CHRYSLER LLC

    Turn the ignition off.

    Disconnect the Ignition Switch harness connector.

    Measure the resistance between ground and the (F20) Fused Ignition Switch Output (Run/Start) circuit.

    Is the resistance below 10K ohms? 

    Yes 

    1. Repair the (F20) Fused Ignition Switch Output (Run/Start) circuit for a short to ground.
    2. Perform BODY VER TEST - VER 1 .

    No 

    1. Go To  4.
  4. (F20) FUSED IGNITION SWITCH OUTPUT (RUN/START) CIRCUIT OPEN 
    Fig 3: Measuring The Resistance Fused Ignition Switch Output Circuit
    GC0048746Courtesy of CHRYSLER LLC

    Measure the resistance (F20) Fused Ignition Switch Output (Run/Start) circuit.

    Is the resistance above 5.0 ohms? 

    Yes 

    1. Repair the (F20) Fused Ignition Switch Output (Run/Start) circuit for an open.
    2. Perform BODY VER TEST - VER 1 .

    No 

    1. Go To  5.
  5. CHECK (A106) FUSED B+ FOR AN OPEN 
    Fig 4: Measuring The Voltage Of The Fused B+ Circuit
    GC0048747Courtesy of CHRYSLER LLC

    Measure the voltage of the (A106) Fused B+ circuit.

    Does the test light illuminate brightly? 

    Yes 

    1. Replace the Ignition Switch in accordance with the service information.
    2. Perform BODY VER TEST - VER 1 .

    No 

    1. Repair the (A106) Fused B+ circuit for an open.
    2. Perform BODY VER TEST - VER 1 .
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