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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 103 (Totally Integrated Power Module (TIPM) - Electrical Diagnostics - 3500 Cab & Chassis, 4500 & 5500) >> Diagnosis and Testing >> B10E9-Blower Motor Control Circuit Low >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2011 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. VERIFY THE DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE 
    1. Turn the blower control switch to off.
    2. With the scan tool, erase DTCs.
    3. Cycle the ignition switch from off to on.
    4. Turn the blower control switch to on and wait 10 seconds.
    5. With the scan tool, read DTCs.

      Does the scan tool display active DTC B10E9-BLOWER MOTOR CONTROL CIRCUIT LOW?

      Yes 

      • Go To  2.

      No 

      • Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST  .
  2. CHECK FOR ACTIVE DTC B10E9-BLOWER MOTOR CONTROL CIRCUIT LOW WITH THE BLOWER MOTOR HARNESS CONNECTOR DISCONNECTED 
    1. Turn the blower control switch to off.
    2. Turn the ignition off.
    3. Disconnect the Blower Motor harness connector.
    4. Turn the ignition on.
    5. With the scan tool, erase DTCs.
    6. Cycle the ignition switch from off to on.
    7. Turn the blower control switch to on and wait 10 seconds.
    8. With the scan tool, read DTCs.

      Does the scan tool display active DTC B10E9-BLOWER MOTOR CONTROL CIRCUIT LOW?

      Yes 

      • Go To  3.

      No 

      • Replace the Blower Motor in accordance with the Service Information.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST  .
  3. CHECK THE (C7) BLOWER MOTOR SUPPLY CIRCUIT FOR A SHORT TO GROUND 
    Fig 1: Checking Blower Motor Supply Circuit For Short To Ground
    GC0137381Courtesy of CHRYSLER LLC
    1. Turn the ignition off.
    2. Disconnect the TIPM C5 harness connector.
    3. Disconnect the Blower Module harness connector (if equipped).
    4. Measure the resistance of the (C7) Blower Motor Supply circuit between ground and the Blower Motor harness connector.

      Is the resistance greater than 10K Ohms?

      Yes 

      • Replace the Totally Integrated Power Module (TIPM) in accordance with the Service Information.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST  .

      No 

      • Repair the short to ground in the (C7) Blower Motor Supply circuit.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST  .
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