Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSJEEP2007GRAND CHEROKEE 2WD V6-3.7L VIN KREPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )TESTING AND INSPECTIONB CODE CHARTSB10AC
2007 Jeep Grand Cherokee 2WD V6-3.7L VIN K
B10AC
2007 Jeep Grand Cherokee 2WD V6-3.7L VIN KSECTION B10AC
B10AC-RIGHT BLEND DOOR CONTROL CIRCUIT OPEN (ATC)
For a complete wiring diagram refer to Diagrams/Electrical.
- When Monitored:
When actuator movement is requested.
- Set Condition:
If the (C61) Right Blend Door Driver circuit or the (C161) Right Blend Door Common Driver circuit is open.
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?
Yes
- Diagnose and repair the DTC(s).
No
- Go To 2
2. CHECK THE RIGHT BLEND DOOR ACTUATOR CIRCUIT RESISTANCE
Turn the ignition off.
Disconnect the A/C Heater Control C2 harness connector.
Measure the resistance between the (C61) Right Blend Door Driver circuit and the (C161) Right Blend Door Common Driver circuit in the A/C Heater Control C2 harness connector.
Is the resistance above 70.0 ohms?
Yes
- Go To 3
No
- Replace the A/C Heater Control.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
3. CHECK THE (C61) RIGHT BLEND DOOR DRIVER CIRCUIT FOR AN OPEN
Disconnect the Right Blend Door Actuator harness connector.
Measure the resistance of the (C61) Right Blend Door Driver circuit between the Right Blend Door Actuator harness connector and the A/C Heater Control C2 harness connector.
Is the resistance below 5.0 ohms?
Yes
- Go To 4
No
- Repair the (C61) Right Blend Door Driver circuit for an open.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
4. CHECK THE (C161) RIGHT BLEND DOOR COMMON DRIVER CIRCUIT FOR AN OPEN
Measure the resistance of the (C161) Right Blend Door Common Driver circuit between the Right Blend Door Actuator harness connector and the A/C Heater Control C2 harness connector.
Is the resistance below 5.0 ohms?
Yes
- Replace the Right Blend Door Actuator.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
No
- Repair the (C161) Right Blend Door Common Driver circuit for an open.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.