￿)￿￿￿￿￿￿￿￿2￿￿￿￿￿￿￿￿￿￿￿￿￿

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 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 - 202 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 (B10/1)

 

 

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

Left Duovalve (Water Valve) (Y21y1)

 

 

418

Right Duovalve (Water Valve) (Y21y2)

 

 

419

A/C Compressor Electromagnetic Clutch (A9k1)

 

 

420

Closed (Idle) Throttle Speed Increase

 

 

421

Pulse Module (N65)

 

 

422

Serial Interface Connection (K1) to Instrument Cluster (IC)

 

 

451

Diverter Flap (Y11/3)

 

 

452

Blend Air Flap (Y11/3)

 

 

453

Fresh/Recirculated Air Flap (Y11/3) Long Stroke

 

 

454

Fresh/Recirculated Air Flap (Y11/3) Short Stroke

 

 

455

Defroster Outlet Flap (Y11/3) Long Stroke

 

 

456

Defroster Outlet Flap (Y11/3) Short Stroke

 

 

457

Footwell Flap (Y11/3) Long Stroke

 

 

458

Footwell Flap (Y11/3) Short Stroke

 

 

459

Serial Interface Connection (K2) to Instrument Cluster (IC)

 

 

108

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Image 108
Mercedes-Benz CS1000 manual Fault Codes 202 Chassis from 9/95