2006 DODGE RAM SRT-10 Service Repair Manual

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Page 4905 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual 2.CHECK (C61) BLEND DOOR DRIVER CIRCUIT FOR A SHORT TO OTHER DOOR DRIVER CIRCUITS
Measure the resistance between the (C61) Blend Door Driver circuit
and the (C29) Mode Door 1 Driver circuit, the (C32)

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DODGE RAM SRT-10 2006 Service Repair Manual 4.CHECK (C61) BLEND DOOR DRIVER CIRCUIT FOR A SHORT TO (C34) COMMON DOOR DRIVER
CIRCUIT
Disconnect the Blend Door Actuator harness connector.
Measure the resistance between the (C61) Blend Door Driver

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DODGE RAM SRT-10 2006 Service Repair Manual B104E–BLEND DOOR CONTROL CIRCUIT HIGH (SINGLE-ZONE)
For a complete wiring diagramRefer to Section 8W.

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DODGE RAM SRT-10 2006 Service Repair Manual Theory of Operation
The A/C Heater Control drives the Blend Door Actuator via the (C61) Blend Door Driver circuit and the (C34) Com-
mon Door Driver circuit. All of the door actuators share the (C34)

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DODGE RAM SRT-10 2006 Service Repair Manual Diagnose and repair the other DTC(s). If multiple DTCs are present, beginning with the common circuit,
diagnose and repair all short high DTCs and then all short low DTCs. Refer tothe Table of Content

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DODGE RAM SRT-10 2006 Service Repair Manual B104F–BLEND DOOR CONTROL CIRCUIT OPEN (SINGLE-ZONE)
For a complete wiring diagramRefer to Section 8W.

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Theory of Operation
The A/C Heater Control drives the Blend Door Actuator via the (C61) Blend Door Driver circuit and the (C34) Com-
mon Door Driver circuit. All of the door actuators share the (C34) Common Door Driver circuit. Inside the A/C Heater
Control, each door actuator has its own unique driver, but all share a single common door driver circuit. Due to the
shared circuitry similar DTCs can set at the same time for multiple actuators depending upon the location of the
open circuit and the direction the actuator is moving when the open is present.
When Monitored:
During actuator calibration.
Set Condition:
If Blend Door Actuator’s electrical circuit is open. This DTC has a maturingtimeof5secondsandade-ma-
turing time of 10 seconds. If the DTC’s status changes from active to storedit will stay in memory for 100
ignition cycles.
Possible Causes
(C61) BLEND DOOR DRIVER CIRCUIT OPEN
(C34) COMMON DOOR DRIVER CIRCUIT OPEN
BLEND DOOR ACTUATOR
A/C HEATER CONTROL
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 for stored DTC test procedures.
Diagnostic Test
1.CHECK FOR ACTIVE CONTROL CIRCUIT/PERFORMANCE DTCs
Turn the ignition on.
With the scan tool, read active HVAC DTCs.
Does the scan tool display any active: XXXX CONTROL CIRCUIT/PERFORMANCE DTCs?
Ye s>>
Diagnose and repair the DTC(s). Refer to the Table of Contents in this Section for a complete list of
HVAC related symptoms.
No>>
Go To 2
2.CHECK BLEND DOOR ACTUATOR CIRCUIT RESISTANCE
Turn the ignition off.
Disconnect the A/C Heater Control C1 harness connector.
Measure the resistance between the (C61) Blend Door Driver circuit
and the (C34) Common Door Driver circuit in the A/C Heater Control C1
harness connector.
Is the resistance above 70 ohms?
Ye s>>
Go To 3
No>>
Replace the A/C Heater Control in accordance with the Ser-
vice Information.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8
- ELECTRICAL/ELECTRONIC CONTROL MODULES -
STANDARD PROCEDURE).

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DODGE RAM SRT-10 2006 Service Repair Manual 3.CHECK (C61) BLEND DOOR DRIVER CIRCUIT FOR AN OPEN
Disconnect the Blend Door Actuator harness connector.
Measure the resistance of the (C61) Blend Door Driver circuit between
the A/C Heater Control C

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