B10EC–BLOWER MOTOR CONTROL CIRCUIT OVERCURRENT (TIPM)





For a complete wiring diagram Refer to Section 8W


  • When Monitored:

    With the ignition on.

  • Set Condition:

    The Totally Integrated Power Module (TIPM) will set this DTC if it detects an overcurrent condition on the (C7) Blower Motor Control circuit for more than 500 ms when blower motor operation is requested.


Possible Causes
  
BLOCKAGE STALLING BLOWER MOTOR
  
BLOWER MOTOR
  
TOTALLY INTEGRATED POWER MODULE (TIPM)
  



Diagnostic Test

1.VERIFY DTC B10EC-BLOWER MOTOR CONTROL CIRCUIT OVERCURRENT IS ACTIVE






Does the scan tool display active: B10EC-BLOWER MOTOR CONTROL CIRCUIT OVERCURRENT?

Yes
  • Go To2


No
  • The condition that caused this symptom is currently not present. 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. Repair as necessary.
  • Perform the BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).

2.CHECK FOR PROPER BLOWER MOTOR OPERATION




Does the Blower Motor operate normally?

Yes
  • Go To4


No
  • Go To3

3.CHECK FOR ACTIVE: B10E9–BLOWER MOTOR CONTROL CIRCUIT LOW







Does the scan tool display active: B10E9–BLOWER MOTOR CONTROL CIRCUIT LOW?

Yes


No
  • Go To4

4.CHECK FOR 12 VOLTS TO THE BLOWER MOTOR









Does the volt meter read 12 volts?

Yes
  • Go To5


No
  • Go To6

5.CHECK FOR A BLOCKAGE STALLING THE BLOWER MOTOR





Is anything physically preventing Blower Motor operation?

Yes
  • Repair as necessary. Also, check Blower Motor for proper operation. Reinstall, or replace the Blower Motor as necessary in accordance with the service information.


No

6.CHECK FOR CHAFING IN THE (C7) BLOWER MOTOR CONTROL CIRCUIT




Is any wire chafing present?

Yes


No