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Home >> Chrysler >> 2009 >> PT Cruiser Base, Automatic >> Repair and Diagnosis >> Engine Performance >> Ignition System >> (Totally Integrated Power Module (TIPM) - Electrical Diagnostics) >> DTC Troubleshooting >> B2104-Ignition Run/Start Control Circuit Low >> Diagnostic Test
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Diagnostic Test

  1. CHECK FOR ACTIVE DTC 
    1. With the scan tool, record and erase DTCs.
    2. Cycle the ignition switch from off to on, leaving the ignition off for a minimum of 30 seconds.
    3. With the scan tool, read the active DTCs.

      Does the scan tool display this DTC as active?

      Yes 

      • Go to step  2

      No 

  2. ORC INTERNAL SHORT 
    Fig 1: Checking ORC For Internal Short
    GC0100183Courtesy of CHRYSLER LLC
    WARNING: To avoid possible serious or fatal injury, turn the ignition off, disconnect the battery and wait two minutes before proceeding.
    1. Disconnect the ORC C2 harness connector.
    2. Turn the ignition on.
    3. Reconnect the battery.
    4. With the scan tool, read DTCs.

      Does the scan tool display B2104-IGNITION RUN/START CONTROL CIRCUIT LOW?

      Yes 

      • Go to step  3

      No 

  3. (F200) FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT SHORT TO GROUND 
    Fig 2: Checking Fused Ignition Switch Output (Run-Start) Circuit
    GC0100184Courtesy of CHRYSLER LLC
    1. Turn the ignition off.
    2. Disconnect the TIPM C7 harness connector.
    3. Measure the resistance between ground and the (F200) Fused Ignition Switch Output (Run-Start) circuit.

      Is the resistance below 10K ohms?

      Yes 

      No