￿)￿￿￿￿￿￿￿￿2￿￿￿￿￿￿￿￿￿￿￿￿￿

FAULT DIAGNOSIS

1.IGNITION : Position 1

2.Left Temperature selector wheel : HI

Right Temperature selector wheel : LO

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

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

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

6.To erase all codes must be read out. Press both AUTO buttons simultaneously for more than 2 seconds. "d" will be displayed on the left and "FF" is displayed on the right. The erase can be canceled by pressing the AUTO button.

7.Reset temperature selector to normal setting.

8.IGNITION : OFF to end the test program.

 

FAULT CODES - 140 Chassis from 9/95

 

 

DTC Readout

Description

 

 

026

CAN Bus Communication

 

 

226

In-Car Air Temperature Sensor (B10/4)

 

 

227

Outside Air Temperature Sensor (B10/5) to 1996, (B14) as of 1997

 

 

228

Left Heater Core Temperature Sensor (B10/2)

 

 

229

Right Heater Core Temperature Sensor (B10/3)

 

 

230

Evaporator Temperature Sensor (B10/6)

 

 

231

Engine Coolant Temperature Sensor (B11/4)

 

DFI or IFI models Right Engine Coolant Temperature Sensor (B11/10) to 1996

 

 

232

Refrigerant Pressure Sensor (B12)

 

 

233

Refrigerant Temperature Sensor (B12/1)

 

 

234

Sun Sensor (B32)

 

 

235

Emissions (Refrigerant Leak) Sensor (B31)

 

 

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)

 

 

423

Switchover Valve Block (Y11)

 

 

424

Activated Charcoal Filter Actuator (A32m2) : OPEN

 

 

425

Activated Charcoal Filter Actuator (A32m2) : CLOSE

 

 

432

Maximum Heat

 

 

100

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Mercedes-Benz CS1000 manual Fault Codes 140 Chassis from 9/95