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Home >> Jeep >> 2007 >> Compass Limited, AWD, Standard >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0626 To P1279 >> P1279-Starter Control Circuit 2 Open (TIPM) >> Diagnostic Test

Diagnostic Test

  1. 1) DTC IS ACTIVE 
    NOTE: If P0615, P0616 or P0617 has set along with this DTC, diagnose those DTC(s) first before continuing.

    Ignition on, engine not running.

    With the scan tool, select View DTCs.

    Is the status Active for this DTC? 

    Yes 

    1. Go To  2).

    No 

    1. Refer to the *CHECKING FOR AN INTERMITTENT CONDITION Diagnostic Procedure.
  2. 2) STARTER CONTROL OUTPUT OPERATION 
    Fig 1: Probing (T750) Starter Control Output Circuit In The Starter (1-Way) Harness Connector
    GC0054023Courtesy of CHRYSLER LLC

    Turn the ignition off.

    Disconnect the Starter (1-way) harness connector.

    With a 12-volt test light connected to ground, probe the (T750) Starter Control Output circuit in the Starter (1-way) harness connector

    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.

    Crank the engine and monitor the test light.

    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 

    1. Replace the Starter in accordance with the Service Information.
    2. Perform PCM VERIFICATION TEST .

    No 

    1. Go To  3).
  3. 3) (T750) STARTER CONTROL OUTPUT CIRCUIT OPEN 
    Fig 2: Checking Starter Control Output Circuit For Open
    GC0054108Courtesy of CHRYSLER LLC

    Turn the ignition off

    Disconnect the TIPM 10 harness connector.

    Measure the resistance of the (T750) Starter Control Output circuit between the TIPM C10 harness connector and the Starter harness connector.

    Is the resistance below 5.0 ohms? 

    Yes 

    1. Go To  4).

    No 

    1. Repair the short to ground in the (T750) Starter Control Output circuit.
    2. Perform PCM VERIFICATION TEST .
  4. 4) TOTALLY INTEGRATED POWER MODULE 
    NOTE: Before continuing, check the TIPM harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary.

    Using the schematics as a guide, inspect the wire harness and connectors.

    Pay particular attention to all Power and Ground circuits.

    Were any problems found? 

    Yes 

    1. Repair as necessary.
    2. Perform PCM VERIFICATION TEST .

    No 

    1. Replace the Totally Integrated Power Module in accordance with the Service Information.
    2. Perform PCM VERIFICATION TEST .
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