2006 DODGE RAM SRT-10 Service Repair Manual

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Page 4913 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual B105A–RECIRCULATION DOOR CONTROL CIRCUIT HIGH (DUAL-ZONE)
For a complete wiring diagramRefer to Section 8W.

Page 4914 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual Theory of Operation
The A/C Heater Control drives the Recirculation Door Actuator via the (C32) Recirculation Door Driver circuit and
the (C34) Common Door Driver circuit. All of the door actuators sh

Theory of Operation
The A/C Heater Control drives the Recirculation Door Actuator via the (C32) Recirculation Door Driver circuit and
the (C34) Common 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
type of short, its location, and the direction the actuator is moving when the short is present.
When Monitored:
When the Actuator DTC Detection Test is executed.
Set Condition:
If the (C32) Recirculation Door Driver circuit is shorted to voltage.
Possible Causes
(C32) RECIRCULATION DOOR DRIVER CIRCUIT SHORTED TO VOLTAGE
A/C HEATER CONTROL
Diagnostic Test
1.CHECK (C32) RECIRCULATION DOOR DRIVER CIRCUIT FOR A SHORT TO VOLTAGE
NOTE: If present, diagnose and repair DTC B10AB Right Blend
Door Control Circuit High or B10AA Right Blend Door Control Cir-
cuit Low before proceeding.
Turn the ignition off.
Disconnect the A/C Heater Control C1 harness connector.
Turn the ignition on.
Measure the voltage of the (C32) Recirculation Door Driver circuit.
Is the voltage above 0.2 volts?
Ye s>>
Repair the (C32) Recirculation Door Driver circuit for a short
to voltage.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8
- ELECTRICAL/ELECTRONIC CONTROL MODULES -
STANDARD PROCEDURE).
No>>
Go To 2
2.RUN THE ACTUATOR DTC DETECTION TEST
Turn the ignition off.
Reconnect the A/C Heater Control C1 harness connector.
Turn the ignition on.
With the scan tool in HVAC, select System Tests and then select Actuator DTCDetection. When the test is com-
plete, select View DTCs.
Does the scan tool only display: B105A–RECIRCULATION DOOR CONTROL CIRCUITHIGH?
Ye s>>
Replace the A/C Heater Control in accordance with the Service Information.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE).
No, Other DTC(s) Displayed

Page 4915 of 5267

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

Page 4916 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual B105A–RECIRCULATION DOOR CONTROL CIRCUIT HIGH (SINGLE-ZONE)
For a complete wiring diagramRefer to Section 8W.

Page 4917 of 5267

Page 4918 of 5267

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

Page 4919 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual B105B–RECIRCULATION DOOR CONTROL CIRCUIT OPEN (DUAL-ZONE)
For a complete wiring diagramRefer to Section 8W.

Page 4920 of 5267

Theory of Operation
The A/C Heater Control drives the Recirculation Door Actuator via the (C32) Recirculation Door Driver circuit and
the (C34) Common Door Driver circuit. All of the door actuators share the (C34) Common Door Driver. 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 ispresent.
When Monitored:
During actuator calibration.
Set Condition:
If Recirculation Door Actuator’s electrical circuit is open. This DTC hasa maturing time of 5 seconds and a
de-maturing time of 10 seconds. If the DTC’s status changes from active to stored it will stay in memory for
100 ignition cycles.
Possible Causes
(C32) RECIRCULATION DOOR DRIVER CIRCUIT OPEN
(C34) COMMON DOOR DRIVER CIRCUIT OPEN
RECIRCULATION 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 RECIRCULATION DOOR ACTUATOR CIRCUIT RESISTANCE
Turn the ignition off.
Disconnect the A/C Heater Control C1 harness connector.
Measure the resistance between the (C32) Recirculation 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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