MTC

B102F-REAR BLEND REQUEST INPUT CIRCUIT HIGH (MTC)





For a complete wiring diagram REFER to DIAGRAMS/ELECTRICAL .


- When Monitored:
With the ignition on.

- Set Condition:
If the rear blend door driver is out of range towards the high voltage threshold.







NOTE: This DTC must be active for the results of this test to be valid. Do not perform this test if this DTC is stored. Refer to HVAC System Test (ATC) for stored DTC test procedures. Heating-A/C System Diagnostics


Diagnostic Test


1. CHECK (C54) REAR BLEND DOOR DRIVER CIRCUIT FOR A SHORT TO VOLTAGE




Turn the ignition off.
Disconnect the A/C Heater Control C1 harness connector.
Turn the ignition on.
Measure the voltage between ground and the (C54) Rear Blend Door Driver circuit in the A/C Heater Control C1 way harness connector.
Is the voltage above 0.2 volts?

Yes


- Repair the (C54) Rear Blend Door Driver circuit for a short to voltage.
- Perform HVAC VERIFICATION TEST - VER 1.HVAC Verification Test.


No


- Replace the A/C Heater Control.
- Perform HVAC VERIFICATION TEST - VER 1.HVAC Verification Test.