Symptoms :
1. Aircond not function
2. Aircond light not function
Fautl Codes :
1. B1688 - Cluster Ionizer fault
2. 9ED187 - The Humidity / Temperature Sensor Has A Malfunction
3. B1204 / B1205 – Air mixture potentiometer open/short (Passenger)
4. B1245 / B1246 – Air mixture potentiometer open/short (Driver)
5. B1249 / B1250 – Mode door potentiometer open/short
6. B1233 / B1234 – In‑car temperature sensor low/open
7. B1237 / B1238 – Ambient temperature sensor low/open
8. B1672 – APT sensor fault (CAN signal)
9. B1685 – Engine RPM fault (CAN signal)
10. B1686 – Vehicle speed sensor fault (CAN signal)
11. B1687 – Engine coolant temperature sensor fault (CAN signal)
12. B1688 – Cluster Ionizer Fault (equivalent to panel code “50”)
