| Components |

| 1. HECU module 2. Front wheel speed sensor 3. Rear wheel speed sensor 4. Yaw rate & Lateral G sensor 5. Steering angle sensor | 6. ABS Warning lamp 7. Parking brake/EBD warning lamp 8. ESC OFF lamp 9. ESC Function/Warning lamp |
Description of ESC Electronic Stability Control (ESC) recognizes critical driving conditions, such as panic reactions in dangerous situations, and stabilizes the vehicle by wheel-individual braking and engine control intervention.
Oil Specification 1. The HFC-134a system requires synthetic (PAG) compressor oil whereas the R-12 system requires mineral compressor oil. The two oils must never be mixed. 2. Compressor (PAG) oil varies according to compressor model. Be sure to use oil specified for the model of compressor.
Inspection 1. Ignition "ON" 2. Using the scan tool. 3. Emit intensive light toward photo sensor using a lamp, and check the output voltage change. 4. The voltage will rise with higher intensive light and reduce with lower intensive light.