Operation CHARM: Car repair manuals for everyone.

B1070






B1070-BLOWER MOTOR CONTROL CIRCUIT HIGH (TIPM)



- When Monitored:
With the ignition on.

- Set Condition:
If the Totally Integrated Power Module (TIPM) detects voltage on the (C51) Rear Blower Motor Control Output circuit when rear blower motor operation is requested off.





1. VERIFY DTC IS ACTIVE
1. Turn the rear blower control switch to off.
2. Turn the ignition off, wait 10 seconds, and turn the ignition on.
3. With the scan tool, erase TIPM DTCs.
4. Turn the ignition off, wait 10 seconds, and turn the ignition on.
5. Turn the rear blower control switch to on.
6. With the scan tool, read TIPM DTCs.

Does this DTC reset?

Yes

- Go To 2.

No

- 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, corroded, and contaminated terminals.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test.

2. CHECK THE (C51) REAR BLOWER MOTOR CONTROL OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE
1. Turn the ignition off.
2. Disconnect the TIPM C5 harness connector.
3. Disconnect the Rear Blower Motor Module harness connector.
4. Turn the ignition on.
5. Measure the voltage of the (C51) Rear Blower Motor Control circuit in the Rear Blower Motor Module harness connector.

Is the resistance below 10k ohms?

Yes

- Repair the (C51) Rear Blower Motor Control circuit for a short to voltage.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test.

No

- Replace the TIPM.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test.