￿)￿￿￿￿￿￿￿￿2￿￿￿￿￿￿￿￿￿￿￿￿￿

FAULT CODES - 202 Chassis to 8/95

DTC Readout

Description

Cause

Fault Type

 

 

 

 

29

Refrigerant Pressure Sensor (B12)

Short or Open circuit

CONTINUOUS

 

 

 

 

30

Refrigerant Pressure Sensor (B12)

Short or Open circuit

INTERMITTENT

 

 

 

 

31

A/C Compressor RPM Sensor (A9l1)

Bad Sensor

 

 

 

 

 

32

Poly-V Belt Slip Recognition

Slipping Belt

 

 

 

 

 

47

Auxiliary Coolant Pump (M13)

Unknown

 

 

 

 

 

48

Auxiliary Coolant Pump (M13)

Short circuit

INTERMITTENT

 

 

 

 

49

Auxiliary Coolant Pump (M13)

Short or Open circuit

CONTINUOUS

 

 

 

 

50

Auxiliary Coolant Pump (M13)

Short or Open circuit

INTERMITTENT

 

 

 

 

51

Duovalve (Water Valve) (Y21)

Short circuit

CONTINUOUS

 

 

 

 

52

Duovalve (Water Valve) (Y21)

Short circuit

INTERMITTENT

 

 

 

 

53

Duovalve (Water Valve) (Y21)

Short or Open circuit

CONTINUOUS

 

 

 

 

54

Duovalve (Water Valve) (Y21)

Short or Open circuit

INTERMITTENT

 

 

 

 

59

A/C Compressor Electromagnetic Clutch

Short circuit

CONTINUOUS

 

(A9k1)

 

 

 

 

 

 

60

A/C Compressor Electromagnetic Clutch

Short circuit

INTERMITTENT

 

(A9k1)

 

 

 

 

 

 

61

A/C Compressor Electromagnetic Clutch

Short or Open circuit

CONTINUOUS

 

(A9k1)

 

 

 

 

 

 

62

A/C Compressor Electromagnetic Clutch

Short or Open circuit

INTERMITTENT

 

(A9k1)

 

 

 

 

 

 

63

Activation of Auxiliary Fan Stage 1

Short circuit

CONTINUOUS

 

 

 

 

64

Activation of Auxiliary Fan Stage 1

Short circuit

INTERMITTENT

 

 

 

 

65

Activation of Auxiliary Fan Stage 1

Short or Open circuit

CONTINUOUS

 

 

 

 

66

Activation of Auxiliary Fan Stage 1

Short or Open circuit

INTERMITTENT

 

 

 

 

67

Activation of Auxiliary Fan Stage 2

Short circuit

CONTINUOUS

 

 

 

 

68

Activation of Auxiliary Fan Stage 2

Short circuit

INTERMITTENT

 

 

 

 

69

Activation of Auxiliary Fan Stage 2

Short or Open circuit

CONTINUOUS

 

 

 

 

70

Activation of Auxiliary Fan Stage 2

Short or Open circuit

INTERMITTENT

 

 

 

 

71

Closed (Idle) Throttle Speed Increase

Short or Open circuit

CONTINUOUS

 

 

 

 

72

Closed (Idle) Throttle Speed Increase

Short or Open circuit

INTERMITTENT

 

 

 

 

73

Closed (Idle) Throttle Speed Increase

Short circuit

CONTINUOUS

 

 

 

 

74

Closed (Idle) Throttle Speed Increase

Short circuit

INTERMITTENT

 

 

 

 

75

Switchover Valve Block (Y11/3), Diverter

 

CONTINUOUS

 

Flap

 

 

 

 

 

 

104

Page 104
Image 104
Mercedes-Benz CS1000 manual Refrigerant Pressure Sensor B12 Short or Open circuit