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 MANUALSJEEP2008GRAND CHEROKEE OVERLAND, 5.7 2, 4WDREPAIR AND DIAGNOSISHEATING, VENTILATION & A/C (HVAC)HVAC CONTROL SYSTEMSDTCS B1001 TO B10A2
2008 Jeep Grand Cherokee Overland, 5.7 2, 4WD
DTCS B1001 To B10A2
2008 Jeep Grand Cherokee Overland, 5.7 2, 4WDSECTION DTCS B1001 To B10A2
- B1001-A/C Switch Request Input Circuit Low (ATC)
- B100A-RECIRCULATION Switch Request Input Circuit Low (ATC)
- B1016-Rear Defrost Switch Request Input Circuit Low (ATC)
- B1031-Evaporator Fin Temperature Sensor Circuit Low (ATC)
- B1032-Evaporator Fin Temperature Sensor Circuit High (ATC)
- B1034-Infrared Temperature Sensor Input Circuit Low (ATC)
- B1035-Infrared Temperature Sensor Input Circuit High (ATC)
- B1036-Infrared Sensor Period Too Long Or Too Short (ATC)
- B1040-Panel Mode Door 1 Control Circuit/Performance (ATC)
- B1043-Panel Mode Door 1 Control Circuit Open (ATC)
- B1044-Panel Mode Door 1 Travel Range Too Small (ATC)
- B1045-Panel Mode Door 1 Travel Range Too Large (ATC)
- B1058-RECIRCULATION Door Control Circuit/Performance (ATC)
- B105B-RECIRCULATION Door Control Circuit Open (ATC)
- B105C-RECIRCULATION Door Travel Range Too Small (ATC)
- B105D-RECIRCULATION Door Travel Range Too Large (ATC)
- B106B-Rear Defrost Control Circuit Low (ATC)
- B106C-Rear Defrost Control Circuit High (ATC)
- B1082-HVAC MUX Circuit Low
- B1083-HVAC MUX Circuit High
- B109B-Panel Mode Door 2 Control Circuit/Performance (ATC)
- B109E-Panel Mode Door 2 Control Circuit Open (ATC)
- B109F-Panel Mode Door 2 Travel Range Too Small (ATC)
- B10A0-Panel Mode Door 2 Travel Range Too Large (ATC)
- B10A1-Panel Mode Door 2 Actuator Performance (ATC)
- B10A2-Left Blend Door Control Circuit/Performance (ATC)
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.