DTC C1752-52: Compressor Motor Malfunction [08/2015 - 08/2019]: Description
When the "up" side of the height control switch is pressed, a signal is sent from terminal RC of the suspension control ECU to switch the AIR SUS relay on. As a result, the relay contacts close and the compressor motor turns on, producing compressed air.
The suspension control ECU detects the amount of current flowing to the compressor motor by means of the differences in potential at terminals RM+ and RM- of the suspension control ECU. In this way, the suspension control ECU monitors the compressor motor circuit for abnormalities.
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| C1752/52 | With the AIR SUS relay activated, a lock signal of the height control compressor motor is detected for 4 seconds or more. |
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