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 MANUALSMERCURY2010MARINER HYBRID, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 412 (HVAC CONTROL SYSTEM - GENERAL INFORMATION AND DIAGNOSTICS - (HYBRID))DIAGNOSIS AND TESTINGCLIMATE CONTROL SYSTEMTRACTION BATTERY CONTROL MODULE (TBCM) DIAGNOSTIC TROUBLE CODE (DTC) INDEX
2010 Mercury Mariner Hybrid, AWD
Traction Battery Control Module (TBCM) Diagnostic Trouble Code (DTC) Index
2010 Mercury Mariner Hybrid, AWDSECTION Traction Battery Control Module (TBCM) Diagnostic Trouble Code (DTC) Index
WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
The air flow blend door is also referred to as the air inlet mode door.
TRACTION BATTERY CONTROL MODULE (TBCM) DIAGNOSTIC TROUBLE CODE (DTC) INDEX
| DTC | Description | Action |
|---|---|---|
| B1239 | Air Flow Blend Door Driver Circuit Failure | GO to PINPOINT TEST A . |
| B2950 | Air Conditioning System Fault | GO to PINPOINT TEST B . |
| P0535 | Rear A/C Evaporator Temperature Sensor Circuit Failure | GO to PINPOINT TEST B . |
| P0A7E | Hybrid Battery Pack Over Temperature | If any other related DTCs are present, DIAGNOSE those DTCs first. If no other DTCs are present, TEST the base A/C system. If the base A/C system is OK, REFER to PINPOINT TEST C: RADIO INTERFERENCE . If the base A/C system does not operate correctly, REFER to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION AND DIAGNOSTICS . |
| P0A81 | Hybrid Battery Pack Cooling Fan 1 Control Circuit Failure | REFER to PINPOINT TEST E: DTCS P0A81, P0A96 -- HYBRID BATTERY PACK COOLING FANS 1 AND 2 CONTROL CIRCUITS . |
| P0A96 | Hybrid Battery Pack Cooling Fan 2 Control Circuit Failure | REFER to PINPOINT TEST E: DTCS P0A81, P0A96 -- HYBRID BATTERY PACK COOLING FANS 1 AND 2 CONTROL CIRCUITS . |
| P0A9B | Hybrid Battery Temperature Sensor Circuit Failure | REFER to HIGH VOLTAGE TRACTION BATTERY . |
| POAAC | Hybrid Battery Pack Air Temperature Sensor A Circuit Failure | REFER to HIGH VOLTAGE TRACTION BATTERY . |
| P0AB1 | Hybrid Battery Pack Air Temperature Sensor B Circuit Failure | REFER to HIGH VOLTAGE TRACTION BATTERY . |
| P2612 | A/C Refrigerant Distribution Valve (Battery Zone Valve) Control Circuit Low | GO to PINPOINT TEST C . |
| P2613 | A/C Refrigerant Distribution Valve (Battery Zone Valve) Control Circuit High | GO to PINPOINT TEST C . |
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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.