steering ISUZU TROOPER 1995 Workshop Manual

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
•

Supplemental :Restraint System 9J-55
DTC21
DRIVER INITIATOR CIRCUIT RESISTANCE HIGH
STEP ACTION YES NO
1 WAS THE "SRS
DIAGNOSTIC SYSTEM CHECK" GOTOSTEP2. GO TO THE SRS PERFORMED? DIAGNOSTIC
SYSTEM CHECK."
2 WHEN MEASUREMENTS ARE REQUESTED
IN THIS CHART GOTOSTEP3. GOTOSTEP4. USE J-39200 DVM WITH CORRECT TERMINAL ADAPTER FROM J-356F1 D6-A.
IGNITION SWITCH "OFF."
DISCONNECT DRIVER AND PASSENGER INFLATOR
MODULES, YELLOW
2-WAY OR 4--WAY CONNECTORS
LOCATED AT THE TOP OF THE STEERING COLUMN AND BEHIND 1/P COMPARTMENT DOOR ASSEMBLY.
CHECK FOR PROPER CONNECTION TO STEERING
COLUMN CONNECTOR
AT TERMINALS "1" AND "2".
IF OK THEN CONNECT J-41433 SIR DRIVER/PASSENGER
LOAD TOOL STEERING COLUMN HARNESS CONNECTOR
AND PASSENGER INFLATOR MODULE
HARNESS
CONNECTOR.
IGNITION SWATCH"ON." IS
DTC 21 CURRENT?
3
IGNITION SWITCH "OFF."
GO TO STEPS. GOTOSTEP6.
DISCONNECT SRS COIL.DISCONNECT DERM.
CHECK FOR PROPER CONNECTION TO DERM AT TERMINAL "B9".
IF OK THEN MEASURE RESISTANCE FROM DERM HARNESS
CONNECTOR TERMINAL "B9" TO SRS COIL HARNESS
CONNECTOR TERMINAL
"2". IS RESISTANCE 2.00 OR LESS?
4 IGNITION SWITCH "OFF." GOTOSTEP7. REPLACE DRIVER INFLATOR MODULE, REFER TO IN THIS
SECTION 3.
5 REPLACE SRS COIL REFER TO IN THE SECTION 3. GO TO CHART A
6 REPLACE
SRS HARNESS. GOTOSTEP7.
7
RECONNECT ALL SRS COMPONENTS, ENSURE
ALL GO TO THE "SRS DIAGNOSTIC SYSTEM
COMPONENTS ARE PROPERLY MOUNTED. CHECK". CLEAR SRS DIAGNOSTIC TROUBLE CODES.
REPEAT THE "SRS DIAGNOSTIC SYSTEM CHECK."

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
..

Supplemental Restraint System 9J-57
DTC22
DRIVER INITIATOR CIRCUIT RESISTANCE LOW
STEP
ACTION YES NO
1 WAS THE "SRS
DIAGNOSTIC
SYSTEM CHECK" GOTOSTEP2. GO
TO THE "SRS PERFORMED? DIAGNOSTIC
SYSTEM CHECK."
2 WHEN
MEASUREMENTS ARE REQUESTED IN THIS CHART GOTOSTEP6. GOTOSTEP3.
USE J-39200 DVM WITH CORRECT TERMINAL ADAPTER FROM J-35616-A. IS DTC 16 ALSO CURRENT?
3
IGNITION SWITCH "OFF." GOTOSTEP4. GOTO STEP7.
DISCONNECT DRIVER
AND PASSENGER INFLATOR
MODULES, YELLOW 2-WAY OR 4-WAY CONNECTORS
LOCATED
AT THE TOP OF THE STEERING COLUMN AND BEHIND THE 1/P COMPARTMENT DOOR ASSEMBLY.
CONNECT J-41433 SRS DRIVER/PASSENGER LOAD TOOL
TO STEERING COLUMN HARNESS CONNECTOR AND PASSENGER INFLATOR MODULE HARNESS CONNECTOR.
IGNITION SWITCH "ON."
IS
DTC 22 CURRENT?
4
IGNITION SWITCH "OFF." GOTOSTEP5. GOTOSTEP8.
DISCONNECT SRS COIL.
DISCONNECT DERM.
MEASURE RESISTANCE ON DERM HARNESS CONNECTOR
FROM TERMINAL "B8" TO TERMINAL "B9".
DOES
J-39200 DISPLAY "OL"(INFINITE)?
5
REPLACE SRS COIL, REFER TO IN THIS SECTION 3. GO TO CHART A.
6 IGNITION SWITCH "OFF." GOTOSTEP9. DISCONNECT
DRIVER AND PASSENGER INFLATOR
MODULE, YELLOW 2-WAY OR 4-WAY CONNECTORS
LOCATED AT THE TOP OF THE STEERING COLUMN AND
BEHIND THE 1/P COMPARTMENT DOOR ASSEMBLY. REPLACE SRS HARNESS.
7 IGNITION SWITCH "OFF." GOTOSTEP9.
REPLACE DRIVER INFLATOR MODULE, REFER TO SECTION 3F.
8 REPLACE SRS HARNESS. GOTOSTEP9.
9 RECONNECT ALL SRS SYSTEM COMPONENTS, ENSURE GO TO THE "SRS DYAGNOSTIC SYSTEM ALL COMPONENTS ARE PROPERLY MOUNTED. CHECK" CLEAR SRS DIAGNOSTIC TROUBLE CODE. REPEAT THE "SRS DIAGNOSTIC SYSTEM CHECK."

Supplemental Restraint System 9J-59
DTC23
DRIVER INITIATOR CIRCUIT RESISTANCE HIGH
STEP
ACTION YES NO
1 WAS THE "SRS DIAGNOSTIC SYSTEM CHECK" GOTOSTEP2. GO TO THE SRS PERFORMED? DIAGNOSTIC
SYSTEM CHECK."
2
WHEN MEASUREMENTS ARE REQUESTED IN THIS CHART GO TO DTC 19. GOTO STEP3.
USE J-39200 DVM WITH CORRECT TERMINAL ADAPTER FROM J-35616-A. IS DTC 19 ALSO CURRENT?
3
IGNITION SWITCH "OFF." GO TO CHART A. GOTOSTEP4.
DISCONNECT DRIVER AND PASSENGER INFLATOR
MODULES, YELLOW 2-WAY OR 4-WAY CONNECTORS
LOCATED AT THE TOP OF THE STEERING COLUMN AND BEHIND 1/P COMPARTMENT DOOR ASSEMBLY AND.
MEASURE RESISTANCE FROM SRS COIL HARNESS
CONNECTOR TERMINAL "1" TO PASSENGER INFLATOR
MODULE HARNESS CONNECTOR TERMINAL
"3". IS RESISTANCE 5.0 Q OR LESS?
4 DISCONNECT SRS COIL , YELLOW 3-WAY CONNECTOR GOTOSTEP5. GOTOSTEP6.
LOCATED NEAR THE BASE OF THE STEERING COLUMN. MEASURE RESISTANCE FROM SRS COIL CONNECTOR
TERMINAL INFLATOR SIDE TERMINAL "1" TO SRS HARNESS
SIDE TERMINAL "3".
IS RESISTANCE 2.00 OR LESS?
5 REPLACE SRS HARNESS. GOTOSTEP6.
6 REPLACE SRS COIL, REFER TO IN THIS SECTION 3. GOTOSTEP6.
7 RECONNECT ALL SRS
COMPONENT, ENSURE ALL GO TO THE "SRS
DIAGNOSTIC SYSTEM
COMPONENTS
ARE PROPERLY MOUNTED. CHECK". CLEAR SRS DIAGNOSTIC TROUBLE CODES. REPEAT THE "SRS DIAGNOSTIC SYSTEM CHECK".

9J-60 Supplemental Restraint System


DTC 24 {PAGE 1 OF 3)
INITIATOR CIRCUIT VOLTAGE LOW
' I,
CIRCUIT DESCRIPTION
During normal, non-deployment operation of the SRS,
a small amount of current flows through both the driver
and passenger deployment loops. The diagnostic
resistors within the dual pole arming sensor and the
discriminating sensors
along with the resistance of the
inflator modules cause voltage drops within the
deployment loops. The DERM monitors the voltage at
"Driver Side Low" terminal "88" and "Passenger Side
Low" terminal "87" to detect shorts or opens within the
driver deployment
loop. When the measured voltage at
terminal "88" or "87" is below a specified percentage of
its respective Driver 36 VLR power
supply voltage for
500 milliseconds DTC 24 is set.
DTC WILL SET WHEN
The voltage measured at "Driver Side Low" terminal "88"
is below a specified percentage of "Driver 36 VLR" or
when the
voltage measured at "Passenger Side Low"
terminal "87" is below a specified percentage of
"Passenger 36 VLR" for 500 milliseconds. This test is run
during the "Continuous Monitoring" test.
ACTION TAKEN
DERM turns "ON" the "AIR BAG" warning lamp and sets
a diagnostic
trouble code.
DTC WILL CLEAR WHEN
The voltage measured at "Driver Side Low" terminal "88"
is within a specified percentage of "Driver 36 VLR" and
the
voltage measured at "Passenger Side Low" terminal
"87"
is within a specified percentage of "Passenger 36
VLR" 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
occurring
in the steering column circuitry.
3. This test determines whether the malfunction is
occurring
in the passenger inflator module circuitry.
4. This test check's for a short from the SRS COIL to
ground.
DIAGNOSTIC AIDS
An intermittent condition is likely to be caused by a poor
connection at DERM terminals
"A3" and "A4", dual pole
arming sensor terminals "2", "4", "5" or"7",water intrusion
in any discriminating sensor, an open in CKT 1810 or
CKT 1815, ora short to ground in CKT's 1810,1815, 1816,
1817, 1818,
1819, 1820, 1821, 1822, 1824, 1825, 1836.
Refer to DTC 25 diagnose a possible short to B+. When
the malfunction occurs during
an ignition cycle DTC 24
will set. If the malfunction is present at the beginning of
the next ignition
cycle DTC 25 will set and DTC 24 will be
moved to a history
file.
SAS·1 JOINT CONNEC'TlON ,, .
PASS SIDE HIGH PASS SIDE LOW
SRS INDICATOR

STEP
1
2
3
4
5 6
7
8
Supplemental Restraint System 9J-61
TC 24 (PAGE 1 OF 3)
INITIATOR CIRCUIT VOLTAGE LOW
ACTION YES NO
WAS
THE "SRS DIAGNOSTIC SYSTEM
CHECK" GOTOSTEP2. GO TO THE SRS PERFORMED? DIAGNOSTIC
SYSTEM CHECK."
WHEN MEASUREMENTS ARE REQUESTED IN THIS CHART GOTOSTEP3. GOTOSTEP5.
USE J-39200 DVM WITH CORRECT TERMINAL ADAPTER FROM ~35616-A. IGNITION SWITCH "OFF."
DISCONNECT DRIVER INFLATOR
MODULE, YELLOW 2-WAY
CONNECTOR AT THE TOP OF THE STEERING COLUMN, LEAVE PASSENGER INFLATOR MODULE CONNECTED.
CONNECT SRS DRIVER/PASSENGER LOAD TOOL
J-41433 TO DRIVER INFLATOR MODULE HARNESS CONNECTOR.
IGNITION SWITCH "ON."
IS DTC
24 CURRENT?
IGNITION SWITCH "OFF." GOTOSTEP4. GOTOSTEP6.
DISCONNECT PASSENGER INFLATOR MODULE YELLOW 4-WAY
CONNECTOR LOCATED BEHIND THE 1/P ' COMPARTMENT DOOR ASSEMBLY.
CONNECT SRS DRIVER/PASSENGER INFLATOR MODULE HARNESS
CONNECTOR, LEAVE DRIVER INFLATOR MODULE HARNESS CONNECTOR CONNECTED TO LOAD
TOOL. IGNITION SWITCH "ON." IS DTC
24 CURRENT?
IGNITION SWITCH "OFF." GOTOSTEP7. CONTINUE WITH
DISCONNECT
YELLOW 3-WAY SRS COIL CONNECTOR DIAGNOSIS
ON
LOCATED NEAR THE BASE OF THE STEERING COLUMN. NEXT PAGE.
DISCONNECT DERM. MEASURE
RESISTANCE ON SRS COIL HARNESS
CONNECTOR TERMINAL "3" TO DERM HARNESS
CONNECTOR TERMINAL "A1".
IS RESISTANCE
5.00 OR LESS?
IGNITION SWITCH "OFF."
GOTOSTEP8. REPLACE INFLATOR MODULE AT THE TOP OF THE STEERING COLUMN REFER TO IN THIS SECTION 3.
IGNITION SWITCH "OFF." GOTOSTEP8. REPLACE INFLATOR MODULE IN THE 1/P COMPONENT.
REPLACE SRS COIL.
GOTOSTEP8.
RECONNECT ALL SRS COMPONENTS, ENSURE ALL GO TO THE "SRS DIAGNOSTIC SYSTEM
COMPONENTS SRS PROPERLY MOUNTED. CHECK".
CLEAR SRS DIAGNOSTIC TROUBLE CODES. REPEAT THE "SRS DIAGNOSTIC SYSTEM CHECK".

9J-66 Supplemental Restr.aint System
DTC 25 (PAGE 1 OF 2)
INITIATOR CIRCUIT SHORT TO IGNITION
CIRCUIT DESCRIPTION
During the "Initiator Assembly Resistance Test" the
DERM grounds the
"Driver Side Low" terminal "BB" and
measures the voltage at "Driver Side Low" and
"Passenger Side Low." The DERM then grounds
"Passenger Side Low" terminal "B7" and again measures
the
voltage at "Driver Side Low" and "Passenger Side
Low."
For a properly operating circuit the voltage
measures the voltage measurements during each of
these tests
will be below a specified value. When the
voltages measured at both "Driver Side Low" and
"Passenger
Side Low'' are above a specified value during
both tests
DTC 25 is set.
DTC WILL SET WHEN
The voltages measured at both "Driver Side Low" and
"Passenger
Side Low" are above a specified value while
the DERM attempts to ground each of these terminals.
This test is run during the
"Initiator Assembly Resistance
Test" and the "1 0 Minute Loop Test" when: 1) "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.
DTC WILL CLEAR WHEN
The voltages measured at either "Driver Side Low" or
"Passenger
Side Low" is below a specified value while
the DERM ground either of these terminals.
DTC CHART TEST DESCRIPTION
Number(s) below refer to step number(s) on the
diagnostic chart.
2. This test determines whether the malfunction is
occurring
in the steering column circuitry.
3. This test determines whether the malfunction is
occurring
in the passenger inflator module circuitry.
4. This test for a short from the SRS COIL to +B.
DIAGNOSTIC AIDS
Refer to DTC 25(Page 2 of 2).
IGNmON 1 IGNITION 1 DRIVER SOURCE SENSE
~ -
DRIVER 38VLR PASS. 38VLR PASS. SOURCE SENSE 1DA 1&14 111011 D
REDUNDAT INDICATOR GROUND
PASS SIDE HIGH
PASS SIDE LOW
SPARE/l.PS DRIVER SEAT BelT
SERIAL DATA
SRS INDICATOR

STEP
1
2
3
4 5
6
7 8
Suppl~mental Restraint System 9J·67
DTC 25 (PAGE 1 OF 2)
INITIATOR CIRCUIT SHORT TO IGNITION
ACTION
YES NO
WAS
THE "SRS DIAGNOSTIC SYSTEM CHECK" GOTOSTEP2. GO TO THE SRS PERFORMED? DIAGNOSTIC
SYSTEM CHECK."
WHEN MEASUREMENTS ARE REQUESTED IN THIS CHART GOTOSTEP3. GOTO STEPS.
USE J-39200 DVM WITH CORRECT TERMINAL ADAPTER FROM J-35616-A. IGNITION SWITCH "OFF."
DISCONNECT DRIVER INFLATOR
MODULE, YELLOW 2-WAY CONNECTOR AT THE TOP OF THE STEERING COLUMN, LEAVE PASSENGER INFLATOR MODULE CONNECTED.
CONNECT SRS DRIVER/PASSENGER LOAD TOOL J41433 TO DRIVER INFLATOR MODULE HARNESS CONNECTOR.
IGNITION SWITCH "ON."
IS DTC
25 CURRENT?
IGNITION SWITCH "OFF." GOTOSTEP4. GOTOSTEP7. DISCONNECT PASSENGER INFLATOR MODULE YELLOW 4-WAY CONNECTOR
LOCATED BEHIND THE 1/P COMPARTMENT DOOR ASSEMBLY.
CONNECT SRS DRIVER/PASSENGER INFLATOR
MODULE HARNESS CONNECTOR, LEAVE DRIVER INFLATOR MODULE HARNESS
CONNECTOR CONNECTED TO LOAD
TOOL.
IGNITION SWITCH "ON."
IS DTC
25 CURRENT?
IGNITION SWITCH "OFF." GOTO STEP5. CONTINUE
WITH
DISCONNECT YELLOW 3-WAY SRS COIL CONNECTOR DIAGNOSIS ON
LOCATED
NEAR THE BASE OF THE STEERING COLUMN. NEXT PAGE.
DISCONNECT DERM. MEASURE RESISTANCE FROM SRS COIL HARNESS
CONNECTOR TERMINAL "2" TO DERM HARNESS
CONNECTOR TERMINAL "A9".
IS RESISTANCE 5.00 OR LESS?
REPLACE SRS COIL. GOTOSTEP8
IGNITION SWITCH "OFF." GOTOSTEP8
REPLACE INFLATOR MODULE AT THE TOP OF THE STEERING COLUMN REFER TO IN THIS SECTION 3.
IGNITION SWITCH "OFF." GOTOSTEP8
REPLACE INFLATOR MODULE IN THE 1/P COMPONENT.
RECONNECT
ALL SRS COMPONENTS, ENSURE ALL GO TO THE "SRS DIAGNOSTIC SYSTEM
COMPONENTS, ENSURE
ALL COMPONENTS ARE CHECK". PROPERLY MOUNTED.
CLEAR SRS DIAGNOSTIC TROUBLE CODES. REPEAT THE "SRS DIAGNOSTIC SYSTEM CHECK".

9J-68 Supplemental Restraint System
DTC 25 {PAGE 2 OF 2)
INITIATOR CIRCUIT SHORT TO IGNITION
CIRCUIT DESCRIPTION
During the "Initiator Assembly Resistance Test" the
DERM grounds the "Driver
Side Low" terminal "88" and
measures the voltage at "Driver Side Low" and
"Passenger Side Low." The DERM then grounds
"Passenger Side Low" terminai"B7" and again measures
the voltage at "Driver
Side Low" and "Passenger Side
Low." For a properly operating circuit the voltage
measures the voltage measurements during each of
these tests
will be below a specified value. When the
voltages measured at both "Driver Side Low" and
"Passenger Side Low" are above a specified value during
both tests DTC 25 is set.
DTC WILL SET WHEN
The voltages measured at both "Driver Side Low" and
"Passenger Side Low" are above a specified value while
the DERM attempts to ground each of these terminals.
This test is run during the
"Initiator Assembly Resistance
Test" and the "10 Minute Loop Test'' when: 1) "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.
....
DTC WILL CLEAR WHEN
The voltages measured at either "Driver Side Low" or
"Passenger Side Low" is below a specified value while
the DERM ground either of these terminals.
CHART TEST DESCRIPTION
Number(s) below refer to step number(s) on the
diagnostic chart.
1
0. This test checks for a short from the high side of the
passenger deployment loop to 8+.
11. This test checks for a short from the high side of the
passenger deployment loop to 8+.
12. This test checks for a short from the low side of the
driver deployment loop or passenger deployment
loop to B+.
DIAGNOSTIC AIDS
This diagnostic trouble code can only be set when the
malfunction is present as the ignition switch is turned
"ON." After the "Initiator Assembly Resistance Test" is
completed a short to B+ in the steering column, CKT
1819, CKT 1820 or CKT 1824
will cause DTC 24 to set.
When a scan tool "Clear Codes" command is issued and
the malfunction is
still present, the DTC will not reappear
for ten minutes or until the next ignition cycle.
SRS-1 JOINT CONNECTlON ,l 10 1101 ERM
PASS.3eVLR PASS. SOURCE SENSE
PASS SIDe HIGH PASS SIDe LOW
SERIAL DATA
SRS INDICA TOR
II