Manual sections
Repair manual

Climate Control Acura RDX I facelift

Step-by-step instructions on "Climate Control" for Acura RDX I facelift (2009–2012). Pick an article — removal, installation, adjustment and diagnostics with illustrations.

General information

A/C Service Tips and Precautions

A/C System Inspection

How to Check for DTCs with the HDS

How to Use the Self-Diagnostic Function with the HDS

How to Use the Self-Diagnostic Function without the HDS

Checking for DTCs

Checks before using the sensor input display mode

Run the sensor input display mode

DTC Troubleshooting Index

Symptom Troubleshooting Index

System Description

Oil Separator

A/C Pressure Sensor

DTC B1225 or DTC indicator A: An Open in the In-Car Temperature Sensor Circuit

DTC B1226 or DTC indicator B: A Short in the In-Car Temperature Sensor Circuit

DTC B1230 or DTC indicator F: A Short in the Sunlight Sensor Circuit

DTC B1231 or DTC indicator G: An Open in the Evaporator Temperature Sensor Circuit

DTC B1232 or DTC indicator H: A Short in the Evaporator Temperature Sensor Circuit

DTC B1233 or DTC indicator J: An Open in the Air Mix Control Motor Circuit (Driver's)

DTC B1234 or DTC indicator K: A Short in the Air Mix Control Motor Circuit (Driver's)

DTC B1236 or DTC indicator M: An Open in the Passenger's Air Mix Control Motor Circuit

DTC B1239 or DTC indicator A: An Open or Short in the Mode Control Motor Circuit

DTC B1240 or DTC indicator B: A Problem in the Mode Control Motor Circuit, Linkage, Doors, or Motor

DTC B1241 or DTC indicator F: A Problem in the Blower Motor Circuit

Radiator and A/C Condenser Fan Low Speed Circuit Troubleshooting

A/C Condenser Fan High Speed Circuit Troubleshooting

A/C Compressor Clutch Circuit Troubleshooting

A/C Signal Circuit Troubleshooting

In-Car Temperature Sensor Test

Outside Air Temperature Sensor Test

Sunlight Sensor Test

Evaporator Temperature Sensor Test

Driver's Air Mix Control Motor Test

Passenger's Air Mix Control Motor Test

Mode Control Motor Test

Recirculation Control Motor Test

Refrigerant Leak Check

Leak Detector Usage Tips (Refer to the Operator's Manual for complete operating instructions)

Fluorescent Dye Usage Tips

A/C System Noise Check

A/C System Test

Receiver/Dryer Desiccant Replacement

A/C Compressor Replacement

A/C Compressor Clutch Overhaul

A/C Compressor Relief Valve Replacement

A/C Refrigerant Oil Replacement

Blower Unit Component Replacement

Heater Unit/Core Replacement

Refrigerant Recovery

System Evacuation

System Charging