| 1–1–1 |
No fault found by diagnostic system |
| 1–2–1 |
Outside temperature sensor ground (GND) short |
| 1–2–2 |
Outside temperature sensor open circuit or shorted to 12 V |
| 1–2–3 |
Driver's side passenger compartment temperature sensor GND short |
| 1–2–4 |
Driver's side passenger compartment temperature sensor open circuit or shorted to 12 V |
| 1–2–5 |
Passenger side passenger compartment temperature sensor GND short |
| 1–2–6 |
Passenger side passenger compartment temperature sensor open circuit or shorted to 12 V |
| 1–3–1 |
Duct temperature sensor left-hand GND short |
| 1–3–2 |
Duct temperature sensor left-hand open circuit or shorted to 12 V |
| 1–3–3 |
Duct temperature sensor right-hand GND short |
| 1–3–4 |
Duct temperature sensor right-hand open circuit or shorted to 12 V |
| 1–3–5 |
Engine temperature no frequency signal |
| 1–4–1 |
Driver's side temperature switch giving faulty control signal |
| 1–4–3 |
Passenger side temperature switch giving faulty control signal |
| 1–4–5 |
Air distribution switch faulty control signal |
| 1–5–1 |
Control signal from fan speed switch missing or too high |
| 1–5–2 |
Control signal from fan speed signal GND short |
| 2–1–1 |
Driver's side damper motor position sensor open circuit or shorted to 12 V |
| 2–1–2 |
Driver's side damper motor position sensor GND short |
| 2–2–1 |
Passenger side damper motor position sensor open circuit or shorted to 12 V |
| 2–2–2 |
Passenger side damper motor position sensor GND short |
| 2–3–1 |
Ventilation damper motor position sensor open circuit or shorted to 12 V |
| 2–3–2 |
Diagnostic trouble code (DTC) Ventilation damper motor position sensor GND short |
| 2–3–3 |
Floor–defrost damper motor position sensor open circuit or shorted to 12 V |
| 2–3–4 |
Floor–defrost damper motor position sensor GND short |
| 2–3–5 |
Recirculation damper motor position sensor open circuit or shorted to 12 V |
| 2–3–6 |
Recirculation damper motor position sensor GND short |
| 3–1–1 |
Driver's side damper motor shorted to GND or 12 V |
| 3–1–2 |
Passenger side damper motor shorted to GND or 12 V |
| 3–1–3 |
Ventilation damper motor shorted to GND or 12 V |
| 3–1–4 |
Floor/defrost damper motor shorted to GND or 12 V |
| 3–1–5 |
Recirculation damper motor shorted to GND or 12 V |
| 3–2–1 |
Driver's side damper motor active too long |
| 3–2–2 |
Passenger side damper motor active too long |
| 3–2–3 |
Ventilation damper motor active too long |
| 3–2–4 |
Floor/defrost damper motor active too long |
| 3–2–5 |
Recirculation damper motor active too long |
| 4–1–1 |
Passenger compartment fan overcurrent or sticking |
| 4–1–2 |
Driver's side passenger compartment temperature sensor intake fan GND short |
| 4–1–3 |
Driver's side passenger compartment temperature sensor intake fan, no control voltage |
| 4–1–4 |
Driver's side passenger compartment temperature sensor intake fan sticking |
| 4–1–5 |
Passenger side passenger compartment temperature sensor fan GND short |
| 4–1–6 |
Passenger side passenger compartment temperature sensor intake fan, no control voltage |
| 4–1–7 |
Passenger side passenger compartment temperature sensor intake fan sticking |
| 4–1–8 |
Power stage, no control signal |
| 4–1–9 |
Power stage giving faulty diagnostic signal |
| 4–2–0 |
Control unit fault in program memory |
| 5–1–1 |
Self–adjustment damper motor limit positions not carried out |