fuse chart ISUZU TROOPER 1995 Repair Manual

Supplemental Restraint S~m 9J-37
TABLE B
"AIR BAG" WARNING LAMP COMES "ON" STEADY
STEP ACTION YES NO
1 WHEN MEASUREMENTS ARE REQUESTED IN THIS CHART USEJ-39200 DVM GotoStep2. GotoStep3. WITH CORRECTTERMINALADAPTER FROMJ-35616-A. WHEN A CHECK FOR PROPER CONNECTION IS REQUESTED. IGNITION SWITCH "OFF."
REMOVE AND INSPECT "C-22·C-23" FUSE.
IS FUSE GOOD?
2 INSPECT DERM HARNESS CONNECTOR CONNECTION TO DERM. GotoStep4. PROPERLY CONNECT
IS IT SECURELY CONNECTED TO THE DERM? DERM HARNESS
CONNECTOR TO DERM. INSTALL C-22·C-23 FUSE. GotoStep11.
3 REPLACEC-22·C-23 FUSE.JGNITION SWITCH "ON," WAIT 10SECONDS, THEN INSTALL C-22·C-23 Go to StepS.
IGNITION SWITCH "OFF."
FUSE.
REMOVE
AND INSPECT C-22·C-23 FUSE. IS FUSE GOOD? GotoStep11.
4 DISCONNECT DERM.CHECK FOR PROPER CONNECTION TO DERM AT Go to StepS REPLACE /SRS
TERMINALS "A1", "A9", "A10" AND "A12". HARNESS. IF OK, THEN MEASURE RESISTANCE FROM DERM HARNESS CONNECTOR RECONNECT DERM. TERMINAL "A1" TO "A2". INSTALL C-22·C-23 IS
RESISTANCE 5.00 OR LESS?
FUSE. Go to Step11.
5 DISCONNECT DUAL POLE ARMING SENSOR. REPLACE DUAL POLE REPLACE SRS REPLACE C-22·C-23 FUSE.
ARMING SENSOR. HARNESS.
IGNITION SWITCH "ON," WAIT 10 SECONDS, THEN IGNITION SWITCH "OFF .. INSTALL C-22·C-23 RECONNECT DUAL POLE
REMOVE AND INSPECT C-22·C-23 FUSE. FUSE. ARMING
IS FUSE GOOD? GotoStep11. SENSOR. REPLACE C-22·C-23 FUSE. Go to Step11.
6 INSTALL C-22·C-23 FUSE. IGNITION SWITCH GotoStep7. IGNITION SWITCH "ON."
"OFF."
MEASURE VOLTAGE FROM DERM HARNESS REPLACE SRS
CONNECTOR TERMINAL "A1"(GROUND) TO TERMINAL "A9". HARNESS.
IS VOLTAGE 1 VOLT OR LESS? RECONNECT DERM. INSTALL C-22·C-23 FUSE. GotoStep11.
7 INSTALL C-22·C-23 FUSE.DISCONNECT DRIVER AND PASSENGER GotoStep11. Go to StepS.
INFLATOR MODULES, YELLOW 2-WAY OR 4-WAY CONNECTORS LOCATED NEAR THE BASE OF STEERING COLUMN AND BEHIND THE liP COMPARTMENT DOOR ASSEMBLY.
CONNECT DERM HARNESS CONNECTOR TO J41433 SRS
DRIVER/PASSENGER LOAD TOOL.
IGNITION SWITCH "ON."
DOES "AIR
BAG" WARNING LAMP COME "ON"?
8 IGNITION SWITCH "OFF."
IGNITION SWITCH "OFF .. Go to Step10.
DISCONNECT SRS DRIVER/PASSENGER LOAD TOOL. Go to CHART A. IGNITION SWITCH "ON."
MEASURE VOLTAGE ON DERM HARNESS CONNECTOR FROM TERMINAL
"B10" TO TERMINAL "A1"(GROUND). IS VOLTAGE 1 VOLT OR LESS?
9 IGNITION SWITCH "OFF." GotoStep11. DISCONNECT SRS DRIVER/PASSENGER LOAD TOOL. REPLACE SRS HARNESS.
10 IGNITION SWITCH "OFF." Go to Step11. REPLACE SRS HARNESS.
11 RECONNECT ALL SRS COMPONENTS,
GO TO THE "SRS DIAGNOSTIC SYSTEM CHECK" ENSURE ALL COMPONENTS ARE PROPERLY MOUNTED.
REPEAT THE "SRS DIAGNOSTIC SYSTEM CHECK."

9J-38-~tal Restraint System
TABLE C
"AIR BAG" WARNING LAMP DOES NOT COME "ON"
CIRCUIT DESCRIPTION
When the ignition switch is first turned "ON," "Ignition 1"
voltage is applied from the "C-21" fuse to "Redundant
Indicator Ignition 1 ,"terminal "B2", and to the "AIR BAG"
warning lamp which is connected to "SRS Indicator,"
terminal "B1".
The "C-22·C-23" fuses apply system
voltage to the "Ignition 1" inputs, terminals "A9"
and"A10". The DERM responds by flashing the "AIR
BAG"
warning lamp seven times.When the engine is
being cranked,
"Starter'' voltage is applied from the "C-1"
fuse to the DERM at the "Crank" input. The DERM
responds by grounding the
"SRS Indicator'' output until
"Starter" voltage
is removed from the "Crank" input. This
results in the "ARE BAG" warning lamp being "ON"
during cranking.After cranking, the DERM will flash the
"AIR BAG" warning lamp six times.
TO IGNITION
SWITCH
FUSEj
SRS C-24 10A-
1Bot RD
FUSE SRS C-23 10A ,. ..
CHART TEST DESCRIPTION
Number(s) below refer to step number(s) on the
diagnostic table.
1. This test confirms the integrity of the "Redundant
Indicator Ignition 1" circuit.
2. This test checks for an open in the "SRS Indicator"
circuit, instrument panel cluster circuitry, and "AIR
BAG"
warning lamp bulb.
3. This test checks whether the open is due to a bad
bulb.
4. This test determines whether the malfunction is a
short from the
"SRS Indicator'' circuit to B+.
5. This test determines whether the malfunction is an
open in the "SRS Indicator'' circuit or an open in the
instrument
panel cluster.
SRS-1 JOINT CONNECTION
1834
IGNITION 1 IGNITION 1 DRIVER SOURCE SENSE DRIVER 36VLR PASS. 36VLR
REDUNDAT
INDICATOR GROUND
PASS
SIDE HIGH
PASS
SIDE LOW
1---''""""'-------'l-----l--'1-~--'TO ~&'Jc~ELT 1833 BLU FUSE N-7-ST.,AR_TE.,_R+-'l---'1----"''"'"'-"---WHT/RED C-1 0A Al'6L ____.Jill_ BAN FUSE CONNECTOR 1819
1820
SERIAL DATA
DRIVER SIDE HIGH DRIVER SIDE LOW REDUNDANT INDICATOR
IGNITION 1
SRS INDICA TOR
•

9J-40 Supplemental Restraint System
TABLED
"AIR BAG" WARNING LAMP DOES NOT COME "ON"
STEADY DURING
CRANK
CIRCUIT DESCRIPTION
When the ignition switch is first turned "ON," "Ignition 1"
voltage is applied from the "C-21" fuse to "Redundant
Indicator Ignition
1 ,"terminal "B2", and to the "AIR BAG"
warning lamp which is connected to "SRS Indicator,"
terminal "B1". The "C-22-C-23" fuses applies system
voltage to the "Ignition 1" inputs, terminals "A9"
and"A10". The DERM responds by flashing the "AIR
BAG"
warning lamp seven times.When the engine is
being cranked,
"Starter'' voltage is applied from the "C-1"
fuse to the DERM at the "Crank" input. The DERM
responds by grounding the
"SRS Indicator'' output until
"Starter'' voltage is removed from the "Crank" input. This
results
in the "AIR BAG" warning lamp being "ON" during
cranking.After cranking, the DERM
will flash the "AIR
BAG"
warning lamp six times.
FUSE
CHART TEST DESCRIPTION
Number(s) below refer to step number(s) on the
diagnostic table.
1. This test checks for a proper signal to the "Crank"
input during cranking.
2. This test determines whether the lack of a proper
crank signal
is due to an open "Crank" input circuit or
an open power feed to the "C-1" fuse.
3. This test checks for an open in the Body Harness.
4. This test checks for an open in the SRS harness.
SRS-1
TO IGNITION SWITCH
JOINT CONNECTION ___ sR_S~C-·23~1-~---PNK.----~"~~------------~~~--~~~~---IGNITION1
IGNITION 1
FUSE~ SRS C-24 lOA loot R D
IGJ;~ION __ __.,;FU.:;.SE0------'!"------"'""""---------:1-----------S-W_IT_CH ___ SR_S_C-_22_1_DA ____ -7-----"'a"-'"-----YEL
IYOS BLK/RE
l"soDv
DRIVER 36VLR PASS. 36VLA PASS. SOURCE SENSE
REDUNDAT INDICATOR GROUND
PASS SIDE HIGH
PASS SIDE LOW
SERIAL DATA
DRIVER SIDE HIGH DRIVER SIDE LOW REDUNDANT INDICATOR IGNITION 1
SRS INDICATOR
•

Supplemental Restraint System 9J-41
TABLED
"AIR BAG" WARNING LAMP DOES NOT COME "ON"
STEADY DURING
CRANK
STEP
ACTION YES NO
1
WHEN MEASUREMENTS ARE REQUESTED IN THIS CHART IGNITION SWITCH GOTO STEP2.
USE
J-39200 DVM WITH CORRECT TERMINAL ADAPTER "OFF."
FROM J-35616-A. CHECK FOR
INSTALL C-1 FUSE.
PROPER
DISCONNECT DRIVER
AND PASSENGER INFLATOR CONNECTION AT
MODULES, YELLOW 2-WAY OR 4-WAY CONNECTORS DERM HARNESS
LOCATED NEAR THE BASE OF THE STEERING COLUMN CONNECTOR AND BEHIND THE liP COMPARTMENT DOOR ASSEMBLY. TERMINAL "B10".
DISCONNECT DERM. IF OK, THEN GO TO MEASURE VOLTAGE ON DERM HARNESS CONNECTOR CHARTA. FROM TERMINAL "B1 0" TO TERMINAL "A 1"(GROUND) WHILE
STARTING ENGINE.
IS VOLTAGE
GREATER THAN 7.25 VOLTS?
2 IGNITION SWITCH "OFF." GOTOSTEP5. GOTOSTEP3.
REMOVE G-1 FUSE.
MEASURE RESISTANCE FROM
EACH TERMINAL OF THE G-1 FUSE FUSE HOLDER TO DERM HARNESS CONNECTOR
TERMINAL "B10".
IS EITHER
MEASUREMENT 5.00 OR LESS?
3 DISCONNECT BODY HARNESS CONNECTOR. GOTOSTEP4. GOTOSTEP6.
CHECK FOR PROPER CONNECTION AT BODY HARNESS
CONNECTOR TERMINAL "4".
IF OK,
THEN MEASURE
RESISTANCE FROM EACH TERMINAL OF THE C-1 FUSE FUSE HOLDER TO BODY
HARNESS CONNECTOR TERMINAL "4"
IS EITHER
MEASUREMENT 5.00 OR LESS?
4 MEASURE
RESISTANCE FROM BODY HARNESS GOTOSTEP7. REPLACE SRS
CONNECTOR TERMINAL
"4" TO DERM HARNESS HARNESS
CONNECTOR TERMINAL "B10". GOTOSTEP7.
IS EITHER MEASUREMENT 5.00 OR LESS?
5 REPAIR OPEN IN POWER FEED TO C-1 FUSE, REFER TO GO
TO STEP?.
SECTION 8. INSTALL G-1 FUSE.
6 REPLACE BODY HARNESS. GOTOSTEP7.
7 RECONNECT ALL SRS COMPONENTS, ENSURE ALL GO TO THE "SRS DIAGNOSTIC SYSTEM
COMPONENTS
ARE PROPERLY MOUNTED. CHECK" REPEAT THE "SRS DIAGNOSTIC SYSTEM CHECK."

9J-46 Supplemental Restraint System
DTC 16
PASSENGER INITIATOR CIRCUIT RESISTANCE LOW
CIRCUIT DESCRIPTION
During the "Initiator Assembly Resistance Test" the
DERM grounds the "Driver
Side Low" terminal "B8" and
turns "ON" the passenger current source at the
"Passenger Side High" terminal "A7". This causes a
known amount of current to
flow through the passenger
initiator circuit. By monitoring the difference between the
voltage at the "Passenger Side High" terminal "A7" and
the "Passenger
Side Low" terminal "B7" the DERM
calculates the combined resistance of the passenger
inflator module, harness wiring CKTs IB21, IB22 and
IB24 and connector terminal contact.
DTC WILL SET WHEN
The combined resistance of the passenger inflator
module,
harness wiring CKT's IB21, IB22, and IB24 and
connector
terminal contact is below a specified value.
This test is run once each ignition cycle during the
"Initiator Assembly Resistance Test" when: 1) No "higher
priority
faults" are detected during "Turn-ON," 2) No
"higher priority
faults" are detected during "Continuous
Monitoring" for one second,
3) No "Crank" signal present,
4)
"Ignition 1" voltage is above a specified value.
ACTION TAKEN
DERM turns "ON" the "AIR BAG" warning lamp and sets
a diagnostic
trouble code.
1805
DTC WILL CLEAR WHEN
The ignition switch is turned "OFF."
DTC CHART TEST DESCRIPTION
Number(s) below refer to step number(s) on the
diagnostic chart.
2. DTC 16 and 22 will set simultaneously when the
"Driver Side High" circuit is shorted to the
"Passenger Side High" circuit due to parallel current
paths.
3. This test determines whether the malfunction is in
the passenger inflator module circuitry or in the
DERM wiring harness circuitry.
4. This test checks for a short from the "Passenger Side
High" circuit to the "Passenger Side Low" circuit.
DIAGNOSTIC AIDS
An intermittent condition is likely to be caused by a short
between CKT's
IB15, IB21, IB24 and CKT's IB10, IB16,
IB19
or CKT's IB17, IB18, IB20, IB22, IB25, IB36. The
test for this diagnostic
trouble code is only run while the
"AIR BAG" warning lamp is performing the bulb check.
When a scan
tool "Clear Codes" command is issued and
the
malfunction is still present, the DTC will not reappear
until the next ignition cycle.
SRS·1 JOINT CONNECTION 12 10 LBOe TO FUSE 1807 ~~~2~--SR~SC~-2+21-0A--~~--~---
IGNITION 1 IGNITION1 1111 1812 1813 DRIVER JeVLR
PASS. 36VLR
PASS. SOURCE
SENSE
REDUNDAT
INDICATOR
GROUND
PASS SIDE HIGH
PASS SIDE LOW
SERIAL DATA
SRS INDICATOR
•

9J-48 Supplemental Restraint System

DTC 17
PASSENGER INITIATOR CIRCUIT OPEN
CIRCUIT DESCRIPTION
When there is an open in the passenger inflator module,
the resistance between "Passenger
Side High" terminal
"A7'' and "Passenger
Side Low'' terminal "87" increases.
This causes a larger voltage drop from the"Passenger
Side High" to the "Passenger Side Low" across a resistor
inside the DERM which connects these two terminals
together. The increase
in the voltage difference between
"Passenger
Side High" and "Passenger Side Low" is
detected by the DERM during the "Continuous
Monitoring" tests and DTC 17 is set.
DTC WILL SET WHEN
The voltage difference between "Passenger Side High"
terminal "A
7" and "Passenger Side Low" terminal "87" is
above
or equal to a specified value for 500 milliseconds.
ACTION TAKEN
DERM turns "ON" the "AIR BAG" warning lamp and sets
a diagnostic trouble code.
FUSE TO~~~WN -.:.:SR;=.S~C·;:e23,..:.:10::..:.A_-P
!~l lOA 1100 D
....
DTC WILL CLEAR WHEN
The voltage difference between "Passenger Side High"
terminal "A"f' and "Passenger Side Low'' terminal "B7" is
below a specified value for
500 milliseconds.
DTC CHART TEST DESCRIPTION
Number(s) below refer to step number(s) on the
diagnostic chart.
2. This test determines whether the malfunction is in
the passenger inflator module circuitry.
DIAGNOSTIC AIDS
This diagnostic trouble code will only set when there is
an
improper connection to the passenger inflator
module, an improper connection to the passenger
inflator module jumper or an open in the passenger
inflator module or pigtail.
SRS-1 JOINT CONNECTION 10 1101 IGNITION1
IGNITION 1 DRIVER SOURCE SENSE DRIVER 38VLR PASS.38VLR PASS. SOURCE SENSE
REDUNDAT INDICATOR GROUND
PASS SIDE HIGH
PASS SIDE LOW
SPARE/LPS
SERIAL DATA
SRS INDICATOR
•

9J-54 Supplemental Restraint System
DTC21
DRIVER INITIATOR CIRCUIT RESISTANCE HIGH
CIRCUIT DESCRIPTION
During the "Initiator Assembly resistance Test" the
DERM grounds the
"Passenger Side Low" terminal "B7"
and turns "ON" the driver current source at

the
"Driver
Side
High" terminal "B9". This causes a known amount
of Current to flow through the driver initiator circuit. By
monitoring the difference between the voltage at the
"Driver Side High" terminal "B9" and the "Driver Side
Low'' terminal "B8" the DERM calculates the combined
resistance of the driver inflator module, SRS coil
assembly, harness wiring CKTs IB16, IB17 and IB19 and
connector terminal contact.
DTC WILL SET WHEN
The combined resistance of the driver inflator module,
SRScoilassembly, harness wiring
CKT's IB16, IB17 and
IB19 and connector terminal contact is above a specified
value. This test is run during the
"Initiator Assembly
Resistance
Test" when: 1) No "higher priority faults" are
detected during
"Turn-QN," 2) No "higher priority faults"
are detected during
"Continuous Monitoring" for one
second, 3) No
"Crank" signal present, 4) "Ignition 1"
voltage is above a specified value.
ACTION TAKEN
DERM turns "ON" the "AIR BAG" warning lamp and sets
diagnostic trouble code.
FUSE
TO IGNITION SRS C-2310A 11105 SWITCH
TO
IGNITlON SWITCH
~i SRS
C-24 lOA 1800 AD
DTC WILL CLEAR WHEN
The ignition switch is turned "OFF."
DTC CHART TEST DESCRIPTION
Number(s) below refer to step number(s) on the
diagnostic chart.
2. This test determines whether the malfunction is in
the driver inflator module circuitry or
in the DERM
wiring harness circuitry.
3. This test determines whether the malfunction is an
open in IB19.
DIAGNOSTIC AIDS
An intermittent condition is likely to be caused by a poor
connection at: the yellow
2-way connector near the base
of the steering column, DERM terminals
"B8" or "B9", or
the connection at the top of steering column to the driver
inflator module.
SRS·l JOINT CONNECTION
" FUSE SRS C-2210A
BL ED
1800
1807 1111 1812 1113 11114
IGNITION! IGNITION 1
DRIVER 36VLR PASS. 36VLR PASS. SOURCE
SENSE
REDUNDAT INDICATOR GROUND
SRS·1 PASS SIDE HIGH
PASS SIDE LOW
IB34
1831 FUSE STARTER C-10A
SERIAL DATA FUSE
11120
1803
SRS INDICA TOR
•

9J-56 Supplemental Restraint System
DTC22
DRIVER INITIATOR CIRCUIT RESISTANCE LOW
CIRCUIT DESCRIPTION
During the "Initiator Assembly resistance Test" the
DERM grounds the "Passenger
Side Low" terminal "B7"
and turns "ON" the driver current source at the "Driver
Side High" terminal "B9". This causes a known amount
of current to flow through the driver initiator circuit. By
monitoring the difference between the voltage at the
"Driver Side High" terminal "B9" and the "Driver Side
Low"
terminal "B8" the DERM calculates the combined
resistance of the driver inflator module, SRS coil
assembly, harness wiring CKTs IB16, IB17 and IB19 and
connector terminal contact.
DTC WILL SET WHEN
The combined resistance of the driver inflator module,
SRS coil assembly, harness wiring CKT's IB16, IB17 and
IB19 and connector terminal contact is above a specified
value. This test is run during the
"Initiator Assembly
Resistance
Test" when: 1) No "higher priority faults" are
detected during
"Turn-ON," 2) No "higher priority faults"
are detected during "Continuous Monitoring" for one
second,
3) No "Crank" signal present, 4) "Ignition 1"
voltage is above a specified value.
ACTION TAKEN
DERM turns "ON" the "AIR BAG" warning lamp and sets
diagnostic trouble code.
DTC WILL CLEAR WHEN
The ignition switch is turned "OFF."
DTC CHART TEST DESCRIPTION
Number(s) below refer to step number(s) on the
diagnostic chart.
2. DTC 16 and 22 will set simultaneously when the
"Driver Side High" circuit due to parallel current
paths.
3. This test determines whether the malfunction is in
the driver inflator module circuitry or in the DERM
wiring harness circuitry.
4. This test checks for a short from the "Driver Side
High"
circuit to the "Driver Side Low'' circuit.
DIAGNOSTIC AIDS
An intermittent condition is likely to be caused by a short
between CKT
IB17 and CKT IB16 or CKT IB19 or a
malfunctioning shorting
clip at the base of the steering
column. The test for this diagnostic trouble code is only
run while the "AIR BAG" warning lamp is performing the
bulb check. When a scan tool
"Clear Codes" command
is issued and the malfunction is
still present, the DTC will
not reappear until the next ignition cycle.
SAS·1 JOINT CONNECTlON FUSE SASC-2310A -. IGNITION 1 IGJ,\\oN FUSE SWrrtH SRS C-22 10A
DRIVER 38VLR PASS.30VLA PASS. SOURCE SENSE
REDUNOAT INOtcATOR GROUND
PASS SIDE HIGH PASS SIDE LOW
SPAREAPS
SERIAL DATA
DRIVER SIDE HIGH DRIVER SIDE LOW REDUNDANT INDICATOR
IGNITION 1
SRS INDICATOR
..

9J-70 Supplemental Restraint System
DTC26
DRIVER INITIATOR CIRCUIT OPEN
CIRCUIT DESCRIPTION
When there is an open in the driver inflator module or the
SRS coil assembly the resistance between "Driver Side
High" terminal "89" and "Driver Side Low" terminal "88"
increases. This causes a larger voltage drop from the
"Driver
Side High" to the "Driver Side Low" across a
resistor inside the DERM which connects these two
terminals together. The increase in the voltage difference
between "Driver
Side High" and "Driver Side Low" is
detected by the DERM during the "Continuous
Monitoring" tests and DTC 26 is sets.
DTC WILL SET WHEN
The voltage difference between "Driver Side High"
terminal "89" and "Driver Side Low" terminal "88" is
above or
equal to a specified value for 500 milliseconds.
ACTION TAKEN
DERM turns "ON" the "AIR BAG" warning lamp and sets
a diagnostic
trouble code.
TO IGNITION FUSE SRS C-23 lOA , ...
DTC WILL TEST WHEN
The voltage difference between "Driver Side High"
terminal "89" and "Driver Side Low" terminal "88" is
below a specified value for 500 milliseconds.
DTC CHART TEST DESCRIPTION
Number(s) below refer to step number(s) on the
diagnostic chart.
2. This test determines whether the malfunction is in
the driver inflator module.
3. This test determines whether the malfunction is in
the SRS coil assembly.
4. This test determines whether the malfunction is in
the SRS HARNESS.
DIAGNOSTIC AIDS
This diagnostic trouble code will only set when there is
an improper connection of either the
yellow 2-way
connector near the base of steering column or the yellow
2-way connector at the top of the steering column, an
open SRS coil assembly or an open inflator module.
SRS·l
JOINT CONNECTION ,.,. IGNITION 1 SWITCH
FUSE~
1GrJ;~ION-- SRS C-24 lOA , ... R D
I----'18"'34'----T---7-3--7-+---'"11134..._-BLI DRIVER 36VLR PASS. 36VLR PASS. SOURCE SENSE
REDUNDAT INDICATOR GROUND
PASS SIDE HIGH
PASS SIDE LOW
SERIAL DATA
DRIVER SIDE HIGH DRIVER SlOE LOW REDUNDANT INDICATOR IGNITION 1
SRS INDICATOR
Ill

9J-74 Supplemental Restraint System
---~


DTC31 \"'
DRIVER LOOP ENERGY RESERVE FEED OPEN
CIRCUIT DESCRIPTION
During the "Continuous Monitoring" tests the DERM
monitors the
voltage at "Driver Source Sense" terminal
"AS." When the circuit is operating normally the
measured voltage will be slightly less than "Driver 36
VLR."
If the "Driver 36 VLR" circuit opens the voltage
measured at "Driver Source Sense" will decrease to
slightly less than "Ignition 1" voltage. When the voltage
measured at "Driver Source Sense" is within a specified
range of
"Ignition 1" for SOO milliseconds DTC 31 is set.
DTC WILL SET WHEN
The voltage measured at "Driver Source Sense" terminal
"AS"
is within a specified range of "Ignition 1" for SOO
milliseconds. This test is run every 100 milliseconds
during "Continuous Monitoring" tests.
ACTION TAKEN
DERM turns "ON" the "AIR BAG" warning lamps and sets
a diagnostic
trouble code.
DTC WILL CLEAR WHEN
The voltage measured at "Driver Source Sense" terminal
"AS"
is outside the specified range of "Ignition 1" which
sets the diagnostic
trouble code, for SOO milliseconds.
TO IGNITION SWITCH
FUSE! SRS C-24 lOA , ... R D
FUSE SRS C-23 IDA , ...
DTC CHART TEST DESCRIPTION
Number(s) below refer to step number(s) on the
diagnostic chart.
2. This test checks for an open in the "Driver 36VLR"
circuit.
3. This test checks for a high resistance, but not an
open, in the "Driver Source Sense" circuit.
4. This test checks for a short from the "Driver Source
Sense" circuit to 8+.
s. This test determines whether the malfunction is due
to the
dual pole arming sensor.
DIAGNOSTIC AIDS
An intermittent condition is likely to be caused by a poor
connection at arming sensor
terminal "4" or "6", poor
connection at DERM
terminal "A4" or "AS", an open in
CKT 1811 or CKT 1812, or an open inside the dual pole
arming sensor.
IGNITION1
IGNITION1
DRIVER SOURCE SENSE DRIVER 38VLR PASS.3eVLR PASS. SOURCE SENSE
PASS SIDE HIGH
PASS SIDE LOW
SPARE/LPS
SERIAL DATA
SRS INDICATOR
..