Mitsubishi Colt Ralliart. Manual - part 543

TROUBLESHOOTING

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-10

TROUBLESHOOTING

DIAGNOSIS TROUBLESHOOTING FLOW

M1524003100568

Refer to GROUP 00, Contents of Troubleshooting 

P.00-5

.

DIAGNOSIS FUNCTION

M1524003200480

DIAGNOSIS CODES CHECK

CAUTION

Turn off the ignition switch before connecting or 
disconnecting the M.U.T.-III.
Connect the M.U.T.-III to the diagnosis connector 
(16-pin) under the instrument under cover, then 
check diagnosis codes (Refer to GROUP 00, Diag-
nosis Function 

P.00-7

).

ERASING DIAGNOSIS CODE

CAUTION

Turn off the ignition switch before connecting or 
disconnecting the M.U.T.-III.
Connect the M.U.T.-III to the diagnosis connector 
and erase the diagnosis code (Refer to GROUP 00, 
Diagnosis Function 

P.00-7

).

SRS WARNING LAMP CHECK

M1524004300747

1. Check that the SRS warning lamp comes on 

when the ignition switch is turned ON.

2. Check that the SRS warning lamp illuminates for 

about 7 seconds and then goes out.

3. If this is not the cause, check the diagnosis codes.

AC510172

<VR-X>

<Except-VR-X>

SRS warning lamp

SRS warning lamp

AC

Main

Index

Group

TOC

TROUBLESHOOTING

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-11

CHECK CHART FOR DIAGNOSIS CODES

M1524003301123

Inspect according to the inspection chart that is appropriate for the diagnosis code.

Code No.

Diagnosis item

Reference Page

1A

Front impact sensor LH 
system

Short circuit in the sensor

P.52B-14

1B

Open circuit in the sensor

P.52B-14

1C

Short circuit in the power 
supply

P.52B-14

1D

Short circuit in the earth

P.52B-14

2A

Front impact sensor RH 
system

Short circuit in the sensor

P.52B-14

2B

Open circuit in the sensor

P.52B-14

2C

Short circuit in the power 
supply

P.52B-14

2D

Short circuit in the earth

P.52B-14

3A*

2

Curtain air bag module (squib) (RH) system (short-circuited 
between terminals of the squib circuit) 

P.52B-18

3B*

2

Curtain air bag module (squib) (RH) system (open-circuited 
in the squib circuit)

P.52B-22

3C

System inside SRS-ECU 

P.52B-42

3D

System inside SRS-ECU 

P.52B-42

3E

Curtain air bag module (squib) (RH) system (short-circuited 
to the power supply)

P.52B-25

3F

Curtain air bag module (squib) (RH) system (short-circuited 
to the earth)

P.52B-27

4A*

2

Curtain air bag module (squib) (LH) system (short-circuited 
between terminals of the squib circuit) 

P.52B-30

4B*

2

Curtain air bag module (squib) (LH) system (open-circuited 
in the squib circuit)

P.52B-34

4C

System inside SRS-ECU 

P.52B-42

4D

System inside SRS-ECU 

P.52B-42

4E

Curtain air bag module (squib) (LH) system (short-circuited 
to the power supply)

P.52B-37

4F

Curtain air bag module (squib) (LH) system (short-circuited 
to the earth)

P.52B-39

14

System inside SRS-ECU 

P.52B-42

15

System inside SRS-ECU 

P.52B-42

16

System inside SRS-ECU 

P.52B-42

17

Safing G-sensor (for side collision) malfunction

P.52B-42

21*

2

Driver's air bag module (squib) system (short-circuited 
between terminals of the squib circuit)

P.52B-43

22*

2

Driver's air bag module (squib) system (open-circuited in the 
squib circuit)

P.52B-47

24*

2

Passenger's (front) air bag module (squib) system 
(short-circuited between terminals of the squib circuit)

P.52B-50

Main

Index

Group

TOC

TROUBLESHOOTING

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-12

25*

2

Passenger's (front) air bag module (squib) system 
(open-circuited in the squib circuit)

P.52B-53

26*

2

Driver's pre-tensioner (squib) system (short-circuited 
between terminals of the squib circuit) 

P.52B-56

27*

2

Driver's seat belt pre-tensioner (squib) system 
(open-circuited in the squib circuit)

P.52B-60

28*

2

Passenger's (front) seat belt pre-tensioner (squib) system 
(short-circuit between terminals of the squib circuit)

P.52B-63

29*

2

Passenger's (front) seat belt pre-tensioner (squib) system 
(open-circuited in the squib circuit)

P.52B-67

31

System inside SRS-ECU 

P.52B-42

32

System inside SRS-ECU 

P.52B-42

34*

1

SRS-ECU connector lock out of order

P.52B-70

35

Ignition of the air bag completed

P.52B-71

39

Air bag deployed simultaneously

P.52B-71

41*

1

Power supply voltage (IG1 (A) voltage) drops abnormally.

P.52B-71

42*

1

Power supply voltage (IG1 (B) voltage) drops abnormally.

P.52B-75

43*

1

SRS warning lamp circuit 
open-circuited

Lamp does not illuminate

P.52B-78

Lamp does not switch off

P.52B-81

44*

1

SRS warning lamp circuit malfunction

P.52B-83

45

System inside SRS-ECU 

P.52B-42

51

System inside SRS-ECU 

P.52B-42

52

System inside SRS-ECU 

P.52B-42

54

System inside SRS-ECU 

P.52B-42

55

System inside SRS-ECU 

P.52B-42

56

System inside SRS-ECU 

P.52B-42

57

System inside SRS-ECU 

P.52B-42

58

System inside SRS-ECU 

P.52B-42

59

System inside SRS-ECU 

P.52B-42

61

Driver's air bag module (squib) system (short-circuited to the 
power supply)

P.52B-84

62

Driver's air bag module (squib) system (short-circuited to the 
earth)

P.52B-87

64

Passenger's (front) air bag module (squib) system 
(short-circuited to the power supply)

P.52B-90

65

Passenger's (front) air bag module (squib) system 
(short-circuited to the earth)

P.52B-92

66

Driver's seat belt pre-tensioner (squib) system 
(short-circuited to the power the supply)

P.52B-94

67

Driver's seat belt pre-tensioner (squib) system 
(short-circuited to the earth)

P.52B-97

Code No.

Diagnosis item

Reference Page

Main

Index

Group

TOC

TROUBLESHOOTING

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

52B-13

NOTE: 

.

1. *

1

: If the vehicle condition returns to normal, the diagnosis code will be automatically erased, and the SRS 

warning lamp will return to normal.

2. *

2

: However, if no diagnosis code resets, the SRS warning lamp will be switched off (The diagnosis code 

will be retained).

3. If the vehicle has a discharged battery, it will store the diagnosis code 41 or 42. When these diagnosis 

codes are read, check the battery.

68

Passenger's (front) seat belt pre-tensioner (squib) system 
(short-circuited to the power supply)

P.52B-99

69

Passenger's (front) seat belt pre-tensioner (squib) system 
(short-circuited to the earth)

P.52B-102

71*

2

Side-airbag module (squib) (RH) system (short-circuited 
between terminals of the squib circuit)

P.52B-105

72*

2

Side-airbag module (squib) (RH) system (open-circuited in 
the squib circuit)

P.52B-108

73

System inside SRS-ECU 

P.52B-42

74

System inside SRS-ECU 

P.52B-42

75

Side-airbag module (squib) (RH) system (short-circuited to 
the power supply)

P.52B-110

76

Side-airbag module (squib) (RH) system (short-circuited to 
the earth)

P.52B-112

79

Side impact sensor (LH) (front) communication error

P.52B-114

81*

2

Side-airbag module (squib) (LH) system (short-circuited 
between terminals of the squib circuit)

P.52B-116

82*

2

Side-airbag module (squib) (LH) system (open-circuited in 
the squib circuit)

P.52B-119

83

System inside SRS-ECU 

P.52B-42

84

System inside SRS-ECU 

P.52B-42

85

Side-airbag module (squib) (LH) system (short-circuited to 
the power supply)

P.52B-121

86

Side-airbag module (squib) (LH) system (short-circuited to 
the earth)

P.52B-123

89

Side impact sensor (RH) communication error

P.52B-125

91*

1

Side impact sensor (LH) voltage error

P.52B-127

92

G-sensor of side impact sensor (LH) failure

P.52B-128

93

Side impact sensor (LH) communication impossible

P.52B-114

94*

1

Side impact sensor (RH) voltage error

P.52B-129

95

G-sensor of side impact sensor (RH) failure

P.52B-128

96

Side impact sensor (RH) communication impossible

P.52B-125

Code No.

Diagnosis item

Reference Page

Main

Index

Group

TOC