￿)￿￿￿￿￿￿￿￿2￿￿￿￿￿￿￿￿￿￿￿￿￿

60

Roof "OPE" = OPEN, "CLO" = CLOSED

 

 

61

Left Air Outlet, Potentiometer Voltage

 

 

62

Vacuum Actuator 46, Feedback Potentiometer Voltage

 

 

63

Center Air Outlet, Potentiometer Voltage

 

 

64

Vacuum Actuator 47, Feedback Potentiometer Voltage

 

 

65

Right Air Outlet, Potentiometer Voltage

 

 

66

Vacuum Actuator 47, Feedback Potentiometer Voltage

 

 

FAULT DIAGNOSIS

1.IGNITION : Position 1

2.Temperature selector wheel : "LO"

3.Within 20 seconds press the REST and DEFROST buttons simultaneously for more than 5 seconds.

4.The LED in the RECIRCULATE button flashes and "dI A" appears on the display.

5.Press the AUTO button until all DTC's are displayed and recorded.

6.The current faults are displayed first, then the intermittent faults. "END'" is displayed when all codes have been displayed.

7.To erase codes press AUTO again, "dEL" will be displayed. Press v and ^ simultaneously for more than 5 seconds. The display will then show "---". Press AUTO to cancel the erase.

8.IGNITION : OFF to end the test program.

 

FAULT CODES - 129 Chassis from 9/95

 

 

DTC Readout

Description

 

 

026

CAN Bus Communication

 

 

226

In-Car Air Temperature Sensor (B10/4)

 

 

227

Outside Air Temperature Sensor (B14)

 

 

228

Heater Core Temperature Sensor (B10/2)

 

 

230

Evaporator Temperature Sensor (B10/6)

 

 

231

Engine Coolant Temperature Sensor (B11/4)

 

 

232

Refrigerant Pressure Sensor (B12)

 

 

233

Refrigerant Temperature Sensor (B12/1)

 

 

241

Refrigerant Level

 

 

416

Coolant Circulation Pump (A31m1)

 

 

417

Automatic A/C Monovalve (Y19)

 

 

419

A/C Compressor Electromagnetic Clutch (A9k1)

 

 

420

Closed (Idle) Throttle Speed Increase

 

 

91

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Image 91
Mercedes-Benz CS1000 manual Fault Codes 129 Chassis from 9/95