SRS-10
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
Component Parts LocationNHS00091
*: The bottom of front passenger seat
PHIA1110E
1. Front passenger air bag module 2. Driver air bag module 3. Spiral cable
4. Diagnosis sensor unit 5. Side air bag (Satellite) sensor (RH/LH) 6. Front seat belt pre-tensioner (RH/LH)
7. Seat belt buckle switch (RH/LH) 8. Front side air bag modules 9.Side curtain air bag module
10. Crash zone sensor 11. Belt tension sensor 12. Belt tension sensor connector *
13. Seat pressure sensor * 14. Occupant classification system control unit *
SRS-20
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
Warning lamp examples
“AIR BAG” warning lamp operation — User mode
—SRS condition Reference item
No malfunction is detected.
No further action is necessary.—
The system is malfunctioning and
needs to be repaired as indicated.Go to SRS-21, "DIAGNOSTIC
PROCEDURE 2" or SRS-27,
"DIAGNOSTIC PROCEDURE 5" .
Air bag is deployed.
Seat belt pre-tensioner is deployed.Go to SRS-50, "
COLLISION DIAG-
NOSIS" .
Diagnosis sensor unit is malfunction-
ing.
Air bag power supply circuit is mal-
functioning.
SRS air bag warning lamp circuit is
malfunctioning.Go to SRS-36, "
Trouble Diagnosis:
“AIR BAG” Warning Lamp Does Not
Turn OFF" .
Diagnosis sensor unit is malfunction-
ing.
Air bag warning lamp circuit is mal-
functioning.Go to SRS-37, "
Trouble Diagnosis:
“AIR BAG” Warning Lamp Does Not
Turn ON" .
SHIA0011E
SHIA0012E
SHIA0013E
SHIA0014E
TROUBLE DIAGNOSIS
SRS-23
C
D
E
F
G
I
J
K
L
MA
B
SRS
Revision: 2006 January2006 M35/M45
SATELLITE SENS RH
[UNIT FAIL]
SATELLITE SENS RH
[COMM FAIL]RH side air bag (Satellite) sensor 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace the RH side air bag (Satel-
lite) sensor.
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
PRE-TEN FRONT LH
[OPEN]
Front LH pre-tensioner circuit is open.
1. Visually check the wiring harness
connections.
2. Replace the harness if it has visible
damage.
3. Replace the front LH seat belt.
4. Replace the diagnosis sensor unit.
5. Replace the related harness. PRE-TEN FRONT LH
[VB-SHORT]
Front LH pre-tensioner circuit is shorted to a power supply cir-
cuit.
PRE-TEN FRONT LH
[GND-SHORT]
Front LH pre-tensioner circuit is shorted to ground.
PRE-TEN FRONT LH
[SHORT]
Front LH pre-tensioner circuit is shorted between lines.
PRE-TEN FRONT RH
[OPEN]
Front RH pre-tensioner circuit is open.
1. Visually check the wiring harness
connections.
2. Replace the harness if it has visible
damage.
3. Replace the front RH seat belt.
4. Replace the diagnosis sensor unit.
5. Replace the related harness. PRE-TEN FRONT RH
[VB-SHORT]
Front RH pre-tensioner circuit is shorted to a power supply cir-
cuit.
PRE-TEN FRONT RH
[GND-SHORT]
Front RH pre-tensioner circuit is shorted to ground.
PRE-TEN FRONT RH
[SHORT]
Front RH pre-tensioner circuit is shorted between lines.
CURTAIN MODULE LH
[OPEN]
LH side curtain air bag module circuit is open. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace the LH side curtain air bag
module.
4. Replace the diagnosis sensor unit.
5. Replace the related harness. CURTAIN MODULE LH
[VB-SHORT]
LH side curtain air bag module circuit is shorted to some power
supply circuits.
CURTAIN MODULE LH
[GND-SHORT]
LH side curtain air bag module circuit is shorted to ground.
CURTAIN MODULE LH
[SHORT]
LH side curtain air bag module circuit is shorted between lines.
CURTAIN MODULE RH
[OPEN]
RH side curtain air bag module circuit is open. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace the RH side curtain air bag
module.
4. Replace the diagnosis sensor unit.
5. Replace the related harness. CURTAIN MODULE RH
[VB-SHORT]
RH side curtain air bag module circuit is shorted to a power sup-
ply circuit.
CURTAIN MODULE RH
[GND-SHORT]
RH side curtain air bag module circuit is shorted to ground.
CURTAIN MODULE RH
[SHORT]
RH side curtain air bag module circuit is shorted between lines.
CONTROL UNIT
Diagnosis sensor unit is malfunctioning. 1. Visually check the wiring harness
connection.
2. Replace the diagnosis sensor unit.
OCCUPANT SENS C/U
[UNIT FAIL]
Occupant classification system control unit is malfunctioning. 1. Visuary check the wiring harness
connection.
2. Replace front passenger seat cush-
ion/occupant classification system
control unit assembly. Diagnostic item ExplanationRepair order
“Recheck SRS at each replacement”
SRS-24
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
NOTE:
Follow the procedures in numerical order when repairing malfunctioning parts. Confirm whether malfunction is
eliminated using air bag warning lamp or CONSULT-II each time repair is finished. If malfunction is still
observed, proceed to the next step. When malfunction is eliminated, further repair work is not required.
OCCUPANT SENS C/U
[COMM FAIL]Communication between the occupant classification system
control unit and air bag diagnosis sensor unit is interrupted, or
occupant classification system control unit is malfunctioning.1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace front passenger seat cush-
ion/occupant classification system
control unit assembly.
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
OCCUPANT SENS
[UNIT FAIL]
Occupant classification sensor is malfunctioning.Replace front passenger seat cush-
ion/occupant classification system
control unit assembly.
BELT TENSION SENS
[UNIT FAIL]
Belt tension sensor circuit between belt tension sensor and
occupant classification system control unit, or diagnosis sensor
unit is malfunctioning.1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace front seat belt (passenger
side) assembly.
4. Replace front passenger seat cush-
ion/occupant classification system
control unit assembly.
PASS A/B INDCTR
CKT
Front passenger air bag off indicator or related circuit is mal-
functioning.1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace front passenger air bag off
indicator (The installation position is
an overhead consoul).
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
FRONTAL COLLISION
DETECTION
Seat belt pre-tensioner and front air bag are deployed.Go to SRS-50, "For Frontal Colli-
sion" .
SIDE COLLISION
DETECTION
Side and curtain air bag is deployed.Go to SRS-52, "For Side Collision" . Diagnostic item ExplanationRepair order
“Recheck SRS at each replacement”
TROUBLE DIAGNOSIS
SRS-29
C
D
E
F
G
I
J
K
L
MA
B
SRS
Revision: 2006 January2006 M35/M45
CRASH ZONE SEN
[UNIT FAIL]
CRASH ZONE SEN
[COMM FAIL]Crash zone sensor 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. If the harness check result is OK,
replace crash zone sensor and diag-
nosis sensor unit.
SIDE MODULE LH
[OPEN]
Front LH side air bag module circuit is open. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. If the harness check result is OK,
replace the diagnosis sensor unit
and LH side air bag module. SIDE MODULE LH
[VB-SHORT]
Front LH side air bag module circuit is shorted to a power sup-
ply circuit.
SIDE MODULE LH
[GND-SHORT]
Front LH side air bag module circuit is shorted to ground.
SIDE MODULE LH
[SHORT]
Front LH side air bag module circuit is shorted between lines.
SIDE MODULE RH
[OPEN]
Front RH side air bag module circuit is open. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. If the harness check result is OK,
replace the diagnosis sensor unit
and RH side air bag module. SIDE MODULE RH
[VB-SHORT]
Front RH side air bag module circuit is shorted to a power sup-
ply circuit.
SIDE MODULE RH
[GND-SHORT]
Front RH side air bag module circuit is shorted to ground.
SIDE MODULE RH
[SHORT]
Front RH side air bag module circuit is shorted between lines.
SATELLITE SENS LH
[UNIT FAIL]
SATELLITE SENS LH
[COMM FAIL]
LH side air bag (Satellite) sensor 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. If the harness check result is OK,
replace the diagnosis sensor unit
and LH side air bag (Satellite) sen-
sor.
SATELLITE SENS RH
[UNIT FAIL]
SATELLITE SENS RH
[COMM FAIL]
RH side air bag (Satellite) sensor 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. If the harness check result is OK,
replace the diagnosis sensor unit
and RH side air bag (Satellite) sen-
sor.
PRE-TEN FRONT LH
[OPEN]
Front LH pre-tensioner circuit is open.
1. Visually check the wiring harness
connections.
2. Replace the harness if it has visible
damage.
3. If the harness check result is OK,
replace the diagnosis sensor unit
and front LH seat belt. PRE-TEN FRONT LH
[VB-SHORT]
Front LH pre-tensioner circuit is shorted to a power supply cir-
cuit.
PRE-TEN FRONT LH
[GND-SHORT]
Front LH pre-tensioner circuit is shorted to ground.
PRE-TEN FRONT LH
[SHORT]
Front LH pre-tensioner circuit is shorted between lines. Diagnostic item ExplanationRepair order
“Recheck SRS at each replacement”
SRS-30
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
PRE-TEN FRONT RH
[OPEN]Front RH pre-tensioner circuit is open.
1. Visually check the wiring harness
connections.
2. Replace the harness if it has visible
damage.
3. If the harness check result is OK,
replace the diagnosis sensor unit
and front RH seat belt. PRE-TEN FRONT RH
[VB-SHORT]
Front RH pre-tensioner circuit is shorted to a power supply cir-
cuit.
PRE-TEN FRONT RH
[GND-SHORT]
Front RH pre-tensioner circuit is shorted to ground.
PRE-TEN FRONT RH
[SHORT]
Front RH pre-tensioner circuit is shorted between lines.
CURTAIN MODULE LH
[OPEN]
LH side curtain air bag module circuit is open.
1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. If the harness check result is OK,
replace the diagnosis sensor unit
and LH side curtain air bag module. CURTAIN MODULE LH
[VB-SHORT]
LH side curtain air bag module circuit is shorted to a power sup-
ply circuits.
CURTAIN MODULE LH
[GND-SHORT]
LH side curtain air bag module circuit is shorted to ground.
CURTAIN MODULE LH
[SHORT]
LH side curtain air bag module circuit is shorted between lines.
CURTAIN MODULE RH
[OPEN]
RH side curtain air bag module circuit is open.
1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. If the harness check result is OK,
replace the diagnosis sensor unit
and RH side curtain air bag module. CURTAIN MODULE RH
[VB-SHORT]
RH side curtain air bag module circuit is shorted to a power sup-
ply circuit.
CURTAIN MODULE RH
[GND-SHORT]
RH side curtain air bag module circuit is shorted to ground.
CURTAIN MODULE RH
[SHORT]
RH side curtain air bag module circuit is shorted between lines.
CONTROL UNIT
Diagnosis sensor unit is malfunctioning. 1. Visually check the wiring harness
connection.
2. Replace the diagnosis sensor unit.
OCCUPANT SENS C/U
[UNIT FAIL]
Occupant classification system control unit is malfunctioning. 1. Replace front passenger seat cush-
ion/occupant classification system
control unit assembly.
OCCUPANT SENS C/U
[COMM FAIL]
Communication between the occupant classification system
control unit and air bag diagnosis sensor unit is interrupted,
diagnosis sensor unit is malfunction, or occupant classification
system control unit is malfunctioning.1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace front passenger seat cush-
ion/occupant classification system
control unit assembly.
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
OCCUPANT SENS
[UNIT FAIL]
Occupant classification sensor is malfunctioning.Replace front passenger seat cush-
ion/occupant classification system
control unit assembly.
BELT TENSION SENS
[UNIT FAIL]
Belt tension sensor circuit between belt tension sensor and
occupant classification system control unit, or diagnosis sensor
unit is malfunctioning.1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace front seat belt (passenger
side) assembly.
4. Replace front passenger seat cush-
ion/occupant classification system
control unit assembly. Diagnostic item ExplanationRepair order
“Recheck SRS at each replacement”
TROUBLE DIAGNOSIS
SRS-31
C
D
E
F
G
I
J
K
L
MA
B
SRS
Revision: 2006 January2006 M35/M45
PASS A/B INDCTR
CKTFront passenger air bag off indicator or related circuit is mal-
functioning.1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. Replace front passenger air bag off
indicator (The installation position is
an overhead consoul).
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
FRONTAL COLLISION
DETECTION
Seat belt pre-tensioner and front air bag are deployed.Go to SRS-50, "For Frontal Colli-
sion" .
SIDE COLLISION
DETECTION
Side and curtain air bag is deployed.Go to SRS-52, "For Side Collision" . Diagnostic item ExplanationRepair order
“Recheck SRS at each replacement”
SRS-46
SIDE AIR BAG (SATELLITE) SENSOR
Revision: 2006 January2006 M35/M45
SIDE AIR BAG (SATELLITE) SENSORPFP:98830
Removal and InstallationNHS0009H
REMOVAL
CAUTION:
Before servicing, turn ignition switch OFF, disconnect both battery terminal and wait at least 3
minutes.
Do not use air tools or electric tools for servicing.
Do not use old fixing nuts after removal; replace with new nuts.
Do not make an impact to the side air bag (satellite) sensor by dropping etc. Replace the side air
bag (satellite) sensor if it has been dropped or sustained an impact.
Replace the satellite sensor of deployed SRS front side air bag and deployed SRS side curtain air
bag.
1. Remove the side air bag (Satellite) sensor.
Remove front seat belt. Refer to SB-30, "Removal and Installation of Front Seat Belt" .
Remove fixing nuts, then remove side air bag (Satellite) sen-
sor.
Disconnect the side air bag (Satellite) sensor harness con-
nector.
INSTALLATION
Install in the reverse order of removal.
CAUTION:
Be careful not to damage the satellite sensor harness.
After the work is completed, make sure no system malfunction is detected by air bag warning
lamp.
In case that malfunction is detected by the air bag warning lamp, reset by the self-diagnosis func-
tion and delete the memory by CONSULT
ll.
In case that malfunction is still detected after the above operation, perform self-diagnosis to repair
malfunctions. Refer to SRS-19, "
SRS Operation Check" . Fixing nut
: 10.8 Nꞏm (1.1 kg
m, 8 ftlb)
PHIA0902J