43–BLEND OVERCURRENT (MTC) (CONTINUED)
2.
CHECK THE (C266) FRONT MODE DOOR DRIVER CIRCUIT FOR A SHORT TO THE (C139) REAR MODE
DOOR DRIVER CIRCUIT, (C939) REAR MODE DOOR COMMON DRIVER CIRCUIT, (C255) LEFT BLEND
DOOR DRIVER CIRCUIT, (C55) LEFT BLEND DOOR COMMON DRIVER CIRCUIT, (C268) RECIRCULATION
DOOR DRIVER CIRCUIT, & THE (C68) RECIRCULATION DOOR COMMON DRIVER CIRCUIT
Turn the ignition off.
Measure the resistance between the (C266) Front Mode Door Driver
circuit and the (C139) Rear Mode Door Driver circuit, (C939) Rear
Mode Door Common Driver circuit, (C255) Left Blend Door Driver cir-
cuit, (C55) Left Blend Door Common Driver circuit, (C268) Recircula-
tion Door Driver circuit, and the (C68) Recirculation Door Common
Driver circuit in the A/C Heater Control C2 harness connector.
Is the resistance below 10k ohms on any of the circuits?
Yes
>> Repair all circuits with a resistance below 10k ohms for a
short to the (C266) Front Mode Door Driver circuit.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8
- ELECTRICAL/ELECTRONIC CONTROL MODULES -
STANDARD PROCEDURE).
No
>> Go To 3
3.
CHECK THE (C66) FRONT MODE DOOR COMMON DRIVER CIRCUIT FOR A SHORT TO THE (C139)
REAR MODE DOOR DRIVER CIRCUIT, (C939) REAR MODE DOOR COMMON DRIVER CIRCUIT, (C255)
LEFT BLEND DOOR DRIVER CIRCUIT, (C55) LEFT BLEND DOOR COMMON DRIVER CIRCUIT, (C268)
RECIRCULATION DOOR DRIVER CIRCUIT, & THE (C68) RECIRCULATION DOOR COMMON DRIVER
CIRCUIT
Measure the resistance between the (C66) Front Mode Door Common
Driver circuit and the (C139) Rear Mode Door Driver circuit, (C939)
Rear Mode Door Common Driver circuit, (C255) Left Blend Door
Driver circuit, (C55) Left Blend Door Common Driver circuit, (C268)
Recirculation Door Driver circuit, and the (C68) Recirculation Door
Common Driver circuit in the A/C Heater Control C2 harness connec-
tor.
Is the resistance below 10k ohms on any of the circuits?
Yes
>> Repair all circuits with a resistance below 10k ohms for a
short to the (C66) Front Mode Door Common Driver cir-
cuit.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8
- ELECTRICAL/ELECTRONIC CONTROL MODULES -
STANDARD PROCEDURE).
No
>> Go To 4
24 - 68
HVAC - ELECTRICAL DIAGNOSTICS
WK