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 MANUALSMAZDA2008CX-7 GRAND TOURING, 2.3 L, FWDREPAIR AND DIAGNOSISHEATING, VENTILATION & A/C (HVAC)HVAC CONTROL SYSTEMSON-BOARD DIAGNOSTIC [HVAC)DTC TABLE
2008 Mazda CX-7 Grand Touring, 2.3 L, FWD
DTC Table
2008 Mazda CX-7 Grand Touring, 2.3 L, FWDSECTION DTC Table
DTC CHART
| DTC | Malfunction location | Detected condition | Memory function | Page |
|---|---|---|---|---|
| B1251 | Passenger compartment temperature sensor | Passenger compartment temperature sensor circuit open | X | (See DTC B1251, B1253 .) (See DTC B1251, B1253, B1255, B1257, B1274, B1275, B1282, B1283, B1947, B2014 (MULTIPLE DTCS INDICATED ).) |
| B1253 | Passenger compartment temperature sensor circuit short (body ground) | X | ||
| B1255 | Ambient temperature sensor | Ambient temperature sensor circuit open | X | (See DTC B1255, B1257 .) (See DTC B1251, B1253, B1255, B1257, B1274, B1275, B1282, B1283, B1947, B2014 (MULTIPLE DTCS INDICATED ).) |
| B1257 | Ambient temperature sensor circuit short (body ground) | X | ||
| B1260 | Solar radiation sensor | Solar radiation sensor circuit short (power supply) | X | (See DTC B1260, B1261 .) (See DTC B1260, B1261, B1274, B1275, B1282, B1283 (MULTIPLE DTCS INDICATED ).) |
| B1261 | Solar radiation sensor circuit short (body ground) | - | ||
| B1274 | Airflow mode actuator (potentiometer) | Airflow mode actuator (potentiometer) circuit short (power supply) | X | (See
DTC B1274, B1275 .) (See
DTC B1251, B1253, B1255, B1257, B1274, B1275, B1282, B1283, B1947, B2014 (MULTIPLE DTCS INDICATED ).) (See DTC B1260, B1261, B1274, B1275, B1282, B1283 (MULTIPLE DTCS INDICATED ).) |
| B1275 | Airflow mode actuator (potentiometer) circuit short (body ground) | X | ||
| B1282 | Air mix actuator (potentiometer) | Air mix actuator (potentiometer) circuit short (power supply) | X | (See
DTC B1282, B1283 .) (See
DTC B1251, B1253, B1255, B1257, B1274, B1275, B1282, B1283, B1947, B2014 (MULTIPLE DTCS INDICATED ).) (See DTC B1260, B1261, B1274, B1275, B1282, B1283 (MULTIPLE DTCS INDICATED ).) |
| B1283 | Air mix actuator (potentiometer) circuit short (body ground) | X | ||
| B1947 | Evaporator temperature sensor | Evaporator temperature sensor circuit short (body ground) | X | (See DTC B1947, B2014 .) (See DTC B1251, B1253, B1255, B1257, B1274, B1275, B1282, B1283, B1947, B2014 (MULTIPLE DTCS INDICATED ).) |
| B2014 | Evaporator temperature sensor circuit open | X | ||
| B2832 | Airflow mode actuator (motor lock) | Airflow mode actuator motor lock | X | (See DTC B2832 .) |
| B2834 | Air mix actuator (motor lock) | Air mix actuator motor lock | X | (See DTC B2834 .) |
| 110155 | CAN communication system | Reception error in signal from ICM (HEC) | X | - |
| 110516 | BUS OFF error | X | - |
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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.