Page 1025 of 1310

4
4. Details:
· SIGMA Workshop Manual chassis, Page 5
· 3000GT Workshop Manual chassis, Page 6
· ’97 3000GT Workshop Manual chassis Supplement, Page 7
· COLT/LANCER Workshop Manual chassis, Page 8
· 95’COLT/LANCER Workshop Manual chassis Supplement, Page 9
· ’97 COLT/LANCER Workshop Manual chassis Supplement, Page 10
· ’96 COLT/LANCER Workshop Manual chassis Supplement, Page 11
· GALANT Workshop Manual chassis, Page 12
· ’96 GALANT Workshop Manual chassis Supplement, Page 13
· SPACE RUNNER/SPACE WAGON Workshop Manual chassis, Page 14
· ’95 SPACE RUNNER/SPACE WAGON Workshop Manual chassis, Page 15
· ’97 SPACE RUNNER/SPACE WAGON Workshop Manual chassis, Page 16
· ’95 L400 Workshop Manual chassis, Page 17
· ’97 L400 Workshop Manual chassis Supplement, Page 18
· PAJERO Workshop Manual chassis, Page 19
· MONTERO Workshop Manual chassis, Page 19
· ’96 PAJERO Workshop Manual chassis Supplement, Page 20
· ’96 MONTERO Workshop Manual chassis Supplement, Page 20
· ’97 PAJERO Workshop Manual chassis Supplement, Page 21
· ’97 MONTERO Workshop Manual chassis Supplement, Page 22
· ’97 L200 Workshop Manual chassis, Page 23
Page 1026 of 1310

5
TEST 2 SRS WARNING LAMP DOES NOT ILLUMINATE
(1) Read (and write down) all of the displayed diagnosis codes
and service data (fault duration and how many times
memories are erased) using the Multi- use Tester
or MUT-II
models>
NOTE
(1) if the Multi-use Tester or Mut-II displays “CAN’T
COMM”. check the Multi-use Tester or MUT-II and
vehicle side diagnosis connector for poor connections
(Refer to P.52B-12.) and perform TEST 4.
(2) Maximum stored period: 9999 minutes (approximately
7 days)
(3) Maximum number of times to be stored: 250
(4) Check diagnosis codes against SELF-DIAGNOSIS QUICK
REFERENCE CHART and perform service indicated there.
SELF-DIAGNOSIS QUICK REFERENCE CHART
After carrying out test 1 or 2, use the following table to repair.
Diagnosis
code No.Explanation Service
- Normal. The SRS is in good order -
11The circuits for the front impact sensor are shorted together, the (-) side of
the harness between the air bag module and the SDU is shorted to the
earth, or the (+) side of the harness between the front impact sensor and
the SDU is shorted to the earthPerform TEST 5
without front passenger’s
air bag> L.H. drive vehicles
refer to P 52B-22
12Right or left impact sensor circuit is open, or the wire from the sensor to the
SDU is open-circuit.R.H. drive vehicles: refer to
P. 52B-26
13Right and left impact sensor circuits are open or the wires from the sensors
to the SDU are open-circuitFront passenger’s air bag>
refer to P.52B-32
21The circuits for the driver’s side air bag module (squib) are shorted together
other or the circuit is earthed.Perform TEST 6
without front passenger’s
air
22The driver’s side air bag module (squib) circuit is open or the wire from the
driver’s side air bag module to the SDU (clock spring) is open circuit, the
harness connection is defective, or the (+) side of the harness between the
driver’s side air bag module and the SDU is shorted to the earth.
Disconnected connector in driver’s side air bag module (squib).
Open-circuit in clock spring due to inappropriate neutral position.bag> L.H. drive vehicles:
refer to P52B-35 R.H. drive
vehicles refer to P.52B-39
passenger’s air bag>: refer
to P.52B-45
24The circuits for the front passenger’s side air bag module (squib) are
shorted together other or the circuit is earthed.Perform TEST 13
(Refer to P.52B-64)
25The front passenger’s side air bag module (squib) circuit is open or the wire
from the front passenger’s side air bag module to the SDU (clock spring) is
open circuit, the harness connection is defective or the (+) side of the
harness between the front passenger’s side air bag module and the SDU is
shorted to the earth.
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) - Troubleshooting52B-14
Page 1027 of 1310

6
TEST 2 SRS WARNING LAMP DOES NOT ILLUMINATE
(1) Read (and write down) all of the displayed diagnosis codes
and service data (fault duration and how many times
memories are erased) using the Multi-use Tester <1993
models> or MUT-II
NOTE
(1) if the Multi-use Tester or Mut-II displays “CAN’T
COMM”. check the Multi-use Tester or MUT-II and
vehicle side diagnosis connector for poor connections
(Refer to P.52B-10.) and perform TEST 4.
(2) Maximum stored period: 9999 minutes (approximately
7 days)
(3) Maximum number of times to be stored: 250
(4) Check diagnosis codes against SELF-DIAGNOSIS QUICK
REFERENCE CHART and perform service indicated there.
SELF-DIAGNOSIS QUICK REFERENCE CHART
After carrying out test 1 or 2, use the following table to repair.
Diagnosis
code No.Explanation Service
- Normal. The SRS is in good order -
11 The circuits for the front impact sensor are shorted together, the (-) side of
the harness between the air bag module and the SDU is shorted to the
earth, or the (+) side of the harness between the front impact sensor and
the SDU is shorted to the earthPerform TEST 5
without front passenger’s
air bag> refer to P 52B-20
12 Right or left impact sensor circuit is open, or the wire from the sensor to the
SDU is open-circuit.passenger’s air bag>
refer to P.52B-24
13 Right and left impact sensor circuits are open or the wires from the sensors
to the SDU are open-circuit
21 The circuits for the driver’s side air bag module (squib) are shorted together
other or the circuit is earthed.Perform TEST 6
without front passenger’s
air
22 The driver’s side air bag module (squib) circuit is open or the wire from the
driver’s side air bag module to the SDU (clock spring) is open circuit, the
harness connection is defective, or the (+) side of the harness between the
driver’s side air bag module and the SDU is shorted to the earth.
Disconnected connector in driver’s side air bag module (squib).
Open-circuit in clock spring due to inappropriate neutral position.bag> refer to P52B-27
passenger’s air bag>: refer
to P.52B-31
24 The circuits for the front passenger’s side air bag module (squib) are
shorted together other or the circuit is earthed.Perform TEST 13
(Refer to P.52B-47)
25 The front passenger’s side air bag module (squib) circuit is open or the wire
from the front passenger’s side air bag module to the SDU (clock spring) is
open circuit, the harness connection is defective or the (+) side of the
harness between the front passenger’s side air bag module and the SDU is
shorted to the earth.
52B-12SUPPLEMENT RESTRAINT SYSTEM (SRS) - Troubleshooting
Page 1028 of 1310
1
5 Short c ir c u it in th e s a fin g G -s e nso r 1
6 Open c ir c u it in th e s a fin g G -s e nso r R
epla ce th e S R S-E C U 2
1
·
Short in d riv e r’s s id e a ir b ag m odule ( s q uib ) o r h arn ess s h ort
·
Short in c lo ck s p rin g 2
2
·
Open c ir c u it in d riv e r’s s id e a ir b ag m odule ( s q uib ) o r o pen h arn ess
·
Open c ir c u it in c lo ck s p rin g
·
Dis co nnecte d c o nnecto r in th e d riv e r’s s id e a ir b ag m odule ( s q uib ).
·
Open c ir c u it in c lo ck s p rin g d ue to in appro pria te n eutr a l p osit io n.
·
Malf u nctio n o f c o nnecto r c o nta ct 6
1
·
Short in d riv e r’s s id e a ir b ag m odule ( s q uib ) h arn ess le adin g to th e p ow er s u pply 6
2
·
Short in d riv e r’s s id e a ir b ag m odule ( s q uib ) h arn ess le adin g to th e e arth N
G C
heck th e c lo ck s p rin g R
epair R
epla ce th e d riv e r’s s id e a ir b ag m odule 9 0
60 N
o
O K <
A dded >
Page 1029 of 1310
d
ep lo ym en t d ue t o s ta tic e le ctr ic it y c o uld c au se s erio us
i n ju ry .
3 . T o u nlo ck t h e S D U c o nnecto r, p la ce a f la t-tip ped
s cre w driv er a g ain st t h e lo ck s p rin g a t t h e lo ck le ver n otc h
a n d p ush t h e s p rin g t o w ard t h e u nit . In t h is c ase, d o n ot
f o rc e t h e lo ck le ver u p.
5
2B -1 2 S
U PPLE M EN TA L R ESTR AIN T S YSTE M ( S R S) - T ro uble sh ootin g 2
1 ·
A
ir b ag m odule ( s q uib ) o r h arn ess s h ort- c ir c u it e d
· C
lo ck s p rin g s h ort- c ir c u it e d 2
2 ·
A
ir b ag m odule ( s q uib ) o r h arn ess o pen-c ir c u it e d
· C
lo ck s p rin g o pen-c ir c u it e d
· D
is co nnecte d c o nnecto r in th e d riv e r’s s id e a ir b ag m odule ( s q uib )
· O
pen-c ir c u it in c lo ck s p rin g d ue to in appro pria te n eutr a l p osit io n
· C
onnecto r in lo ose c o nta ct
Page 1030 of 1310

T
hese c o des a re o utp ut w hen th e r e sis ta nce v a lu e b etw een th e a ir b ag m odule ( s q uib )
t e rm in als in th e S D U is o ut o f th e n orm al r a nge.
T he p ro bable c a use s o f tr o uble a sso cia te d w it h th e r e sp ectiv e c o des N os. a re a s fo l- O
pen-c ir c u it in c lo ck s p rin g d
ue to in appro pria te n eutr a l p
osit io n l
o w s. < R efe r to th e c h art 1 .> Defe ctiv e h arn ess,
c o nnecto r D
efe ctiv e a ir b ag m odule
( d riv e r’s s id e s q uib ) D
efe ctiv e S D U 2
1 ·
Air b ag m odule ( d riv e r’s s id e s q uib ) o r h arn ess s h ort- c ir c u it e d
·
Clo ck s p rin g s h ort- c ir c u it e d 2
2 ·
Air b ag m odule ( d riv e r’s s id e s q uib ) o r h arn ess o pen-c ir c u it e d
·
Clo ck s p rin g o pen-c ir c u it e d
·
Dis co nnecte d c o nnecto r in th e d riv e r’s s id e a ir b ag m odule ( s q uib )
·
Open-c ir c u it in c lo ck s p rin g d ue to in appro pria te n eutr a l p osit io n
·
Connecto r in lo ose c o nta ct i
n ju ry
3 . T o u nlo ck t h e S D U c o nnecto r, p la ce a f la t-tip ped
s cre w driv er a g ain st t h e lo ck s p rin g a t t h e lo ck le ver n otc h
a n d p ush t h e s p rin g t o w ard t h e u nit . In t h is c ase, d o n ot
f o rc e t h e lo ck le ver u p.
S
R S - T ro uble sh ootin g
52B -7 <
A dded >
S cre w -
d riv e r
L ock s p rin g
L
ock le ve r
N otc h
19X 0599
N
egativ e ( -) te rm in al
o f b atte ry
In su la tio n ta pe
Batte ry
Page 1031 of 1310

10
TROUBLESHOOTING
INSPECTION CHART FOR DIAGNOSIS CODES
Inspect according to the inspection chart that is appropriate for the malfunction code.
Code No. Diagnosis item Reference page
14 Analog G-sensor system in the SRS-ECU -
15, 16 Safing G-sensor system in the SRS-ECU -
21, 22, 61, 62 Driver’s side air bag module (squib) system 52B-5
24, 25, 64, 65 Front passenger’s side air bag module (squib) system 52B-6
31, 32 SRS-ECU capacitor system -
34* Connector lock system -
35 SRS-ECU capacitor system -
41* IG1 (A) power circuit system 52B-7
42* IG1 (B) power circuit system 52B-7
43 SRS warning lamp drive circuit system Lamp does not illuminate. * 52B-7
Lamp does not switch off. -
44 SRS warning lamp drive circuit system -
45 SRS-ECU non volatile memory (EEPROM) and A/D converter system -
51, 52 Driver’s side air bag module (squib ignition drive circuit) system -
54, 55 Front passenger’s side sir bag module (squib ignition drive circuit) system -
NOTE
(1) *: if the vehicle condition return to normal, the diagnosis code will be automatically erased, and the SRS warning
lamp will return to normal.
(2) If the vehicle has a discharged battery it will store the fault codes 41 or 42. When these diagnosis codes are
displayed, check the battery.
INSPECTION PROCEDURE CLASSIFIED BY DIAGNOSIS CODE
Code No. 21,22, 61 or 62 Driver’s side air bag module
(squib) systemProbable cause
These diagnosis codes are output if there is abnormal resistance between the
input terminals of the driver’s side air bag module (squib).
The trouble causes for each diagnosis code No. are as follows.·
Malfunction of clock spring
·
Open-circuit in clock spring due to inappropriate neutral
position.
·
Malfunction of wiring harnesses or connectors
·
Malfunction of driver’s side air bag module (squib)
·
Malfunction of SRS-ECU
Code No. Trouble symptoms
21
·
Short in driver’s side air bag module (squib) or harness short
·
Short in clock spring
22
·
Open circuit in driver’s side air bag module (squib) or open harness
·
Open circuit in clock spring
·
Disconnected connector in the driver’s side air bag module (squib).
·
Open circuit in clock spring due to inappropriate neutral position.
·
Malfunction of connector contact
61
·
Short in driver’s side air bag module (squib) harness leading to the power supply
62
·
Short in driver’s side air bag module (squib) harness leading to the earth
52B-5SRS - Troubleshooting
Page 1032 of 1310
1
5 Short c ir c u it in th e s a fin g G -s e nso r 1
6 Open c ir c u it in th e s a fin g G -s e nso r R
epla ce th e S R S-E C U 2
1
·
Short in d riv e r’s s id e a ir b ag m odule ( s q uib ) o r h arn ess s h ort
·
Short in c lo ck s p rin g 2
2
·
Open c ir c u it in d riv e r’s s id e a ir b ag m odule ( s q uib ) o r o pen h arn ess
·
Open c ir c u it in c lo ck s p rin g
·
Dis co nnecte d c o nnecto r in th e d riv e r’s s id e a ir b ag m odule ( s q uib ).
·
Open c ir c u it in c lo ck s p rin g d ue to in appro pria te n eutr a l p osit io n.
·
Malf u nctio n o f c o nnecto r c o nta ct 6
1
·
Short in d riv e r’s s id e a ir b ag m odule ( s q uib ) h arn ess le adin g to th e p ow er s u pply 6
2
·
Short in d riv e r’s s id e a ir b ag m odule ( s q uib ) h arn ess le adin g to th e e arth N
G C
heck th e c lo ck s p rin g ( R efe r to P .5 2B -3 0.) R
epair R
epla ce th e d riv e r’s s id e a ir b ag m odule N
o
O K <
A dded > <
A dded >