1998 OPEL FRONTERA Workshop Manual

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Page 3497 of 6000

OPEL FRONTERA 1998 Workshop Manual RESTRAINT CONTROL SYSTEM 9J1–10
Chart C “AIR BAG” Warning Lamp Does Not Come “ON” Steady
D09RW014
Circuit Description:
When the ignition switch is first turned “ON”, “Ignition 1”
vo

Page 3498 of 6000

OPEL FRONTERA 1998 Workshop Manual 9J1–11
RESTRAINT CONTROL SYSTEM
Chart C “AIR BAG” Warning Lamp Does Not Come “ON” Steady
StepActionYe sNo
11. When measurements are requested in this chart,use
5–8840–0285–0 D

9J1–11
RESTRAINT CONTROL SYSTEM
Chart C “AIR BAG” Warning Lamp Does Not Come “ON” Steady
StepActionYe sNo
11. When measurements are requested in this chart,use
5–8840–0285–0 DVM with correct terminal adapter from
5–8840–0385–0.
2. Ignition switch “OFF.”
3. Remove and inspect “C–10” fuse (meter) to the “AIR BAG”
warning lamp.
Is fuse good?
Go to Step 2Go to Step 7
21. Ignition switch “OFF.”
2. Disconnect SRS coil and passenger air bag assemblies.
Yellow 2–pin connector located at base of steering column and
behind the glove box assembly.
3. Disconnect SDM.
4. Ignition switch “ON.”
5. Measure voltage on SDM harness connector from terminal “7”
to terminal “6” (ground).
Is system voltage present on terminal “7”?
Go to Step 4Go to Step 3
31. Ignition switch “OFF.”
2. Remove instrument meter cluster.
3. Check for proper connection to instrument cluster at
IB04–WHT/RED terminal.
4. If ok, then remove and inspect “AIR BAG” bulb.
Is bulb good?
Go to Step 5
Replace bulb
Go to Step 6
41. Ignition switch “OFF.”
2. Disconnect instrument meter cluster harness connector.
3. Ignition switch “ON.”
4. Measure voltage on SDM harness connector from terminal “7”
to terminal “6” (GROUND).
Is voltage 1 volt or less?
Go to Chart A
Replace SRS
harness
Go to Step 6
51. Install bulb.
2. Measure resistance from instrument meter cluster harness
connector IB04–WHT/RED terminal to SDM harness
connector terminal “7”.
Is resistance 5.0 ohms or less?Service
instrument meter
cluster
Install instrument
meter cluster
Go to Step 6
Replace SRS
harness
Go to Step 6
6Reconnect all SRS components, ensure all components are
properly mounted.
Was this step finished?Repeat the “SRS
Diagnostic
System Check”
Go to Step 6
7Perform chart C.
Was this step finished?
Go to Step 8Go to Step 1
81. Replace “C–10” fuse.
2. Ignition switch “ON” wait 10 Seconds then ignition switch “Off.”
3. Remove and inspect “C–10” fuse.
Is fuse good?
Install “C–10”
fuse
Go to Step 10
Go to Step 9

Page 3499 of 6000

OPEL FRONTERA 1998 Workshop Manual RESTRAINT CONTROL SYSTEM 9J1–12
Chart C “AIR BAG” Warning Lamp Does Not Come “ON” Steady (Cont’d)
StepNo Ye s Action
91. Disconnect SRS coil and passenger air bag assemblies.
Yell

Page 3500 of 6000

OPEL FRONTERA 1998 Workshop Manual 9J1–13
RESTRAINT CONTROL SYSTEM
DTC 15 Passenger Deployment Loop Resistance High
D09RW014
Circuit Description:
When the ignition switch is turned “ON”, the SDM will
perform tests to

9J1–13
RESTRAINT CONTROL SYSTEM
DTC 15 Passenger Deployment Loop Resistance High
D09RW014
Circuit Description:
When the ignition switch is turned “ON”, the SDM will
perform tests to diagnose critical malfunctions within
itself. Upon passing these tests “Ignition 1”, and
deployment loop voltages are measured to ensure they
are within their respective normal voltage ranges. The
SDM then proceeds with the “Resistance Measurement
Test”. “Passenger Bag Low” terminal “16” is grounded
through a resister and the passenger current source
connected to “Passenger Bag High” terminal “15” allows a
known amount of current to flow. By monitoring the
voltage difference between “Passenger Bag High” and
“Passenger Bag Low” the SDM calculates the combined
resistance of the passenger air bag assembly, harness
wiring IB07–YEL/GRN and IB08–YEL/RED connector
terminal contact.
DTC Will Set When:
The combined resistance of the passenger air bag
assembly, harness wiring IB07–YEL/GRN and
IB08–YEL/RED, and connector terminal contact is above
a specified value. This test is run once each ignition cycle
during the “Resistance Measurement Test” when:
1. No “higher priority faults” are detected during
“Turn–ON”,
2. “Ignition 1” voltage is in the specified value.
Action Taken:
SDM turns “ON” the “AIR BAG” warning lamp and sets a
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. This test determines whether the malfunction is in
the SDM.
3. This test verifies proper connection of the yellow
2–pin connector.
4. This test checks for proper contact and/or corrosion
of the yellow 2–pin connector terminals.
5. The test checks for a malfunctioning passenger air
bag assembly.
6. This test determines whether the malfunction is due
to high resistance in the wiring.
Diagnostic Aids:
An intermittent condition is likely to be caused by a poor
connection at the passenger air bag assembly harness
connector terminals “1” and “2”, SDM terminal “15” and
“16”, or a poor wire to terminal connection in
IB07–YEL/GRN and IB08–YEL/RED. This test for this
diagnostic trouble code is only run while the “AIR BAG”

Page 3501 of 6000

OPEL FRONTERA 1998 Workshop Manual RESTRAINT CONTROL SYSTEM 9J1–14
warning lamp is performing the bulb check, unless DTC
17 or DTC 26 is detected. When a scan tool “Clear
Codes” command is issued and the malfunc

RESTRAINT CONTROL SYSTEM 9J1–14
warning lamp is performing the bulb check, unless DTC
17 or DTC 26 is detected. When a scan tool “Clear
Codes” command is issued and the malfunction is stillpresent, the DTC will not reappear until the next ignition
cycle.
DTC 15 Passenger Deployment loop Resistance High
StepActionYe sNo
1Was the “SRS Diagnostic System Check” Performed?
Go to Step 2
Go to The “SRS
Diagnostic
System Check”
21. When measurements are requested in this chart use
5–8840–0285–0 DVM with correct terminal adapter from
5–8840–0385–0.
2. Use scan tool data list function, read and record the passenger
deployment loop resistance.
Is passenger resist. more than 2.9 ohms?
Go to Step 3Go to Chart A
31. Ignition switch “Off.”
2. Make sure the passenger air bag assembly yellow 2–pin
connector located behind the glove box assembly is seated
properly.
Is the yellow 2–pin connector connected properly?
Go to Step 4
Seat passenger
Air Bag assembly
yellow 2–pin
connector
properly
Go to Step 7
41. Disconnect and inspect the passenger air bag assembly
yellow 2–pin connector located behind the glove box
assembly.
2. If ok, reconnect the passenger air bag assembly 2–pin
connector.
3. Ignition switch “ON.”
Is DTC 15 current?
Go to Step 5Go to Step 7
51. Ignition switch “Off.”
2. Disconnect SRS coil and passenger air bag assembly, yellow
2–pin connector located at the base of the steering column and
behind the glove box assembly.
3. Connect 5–8840–2421–0 SRS driver / passenger load tool
and appropriate adapters to SRS coil and passenger air bag
assembly harness connectors.
4. Ignition switch “ON.”
Is DTC 15 Current?
Go to Step 6
Ignition switch
“Off”
Replace the
passenger air
bag assembly
Go to Step 7
61. Ignition switch “Off.”
2. There has been an increase in the total circuit resistance of t h e
passenger inflator deployment loop.
3. Use the high resolution ohmmeter mode of the DVM while
checking IB07–YEL/GRN and IB08–YEL/RED, and SDM
connector terminal “15” and “16” to locate the root cause.
Was a fault found?
Replace SRS
harness
Go to Step 7
Go to Chart A
71. Reconnect all components ensure all component are properly
mounted.
2. Clear diagnostic trouble codes.
Was This step finished?
Repeat the “SRS
Diagnostic
System Check”
Go to Step 7

Page 3502 of 6000

OPEL FRONTERA 1998 Workshop Manual 9J1–15
RESTRAINT CONTROL SYSTEM
DTC 16 Passenger Deployment loop Resistance Low
D09RW014
Circuit Description:
When the ignition switch is turned “ON”, the SDM will
perform tests to

9J1–15
RESTRAINT CONTROL SYSTEM
DTC 16 Passenger Deployment loop Resistance Low
D09RW014
Circuit Description:
When the ignition switch is turned “ON”, the SDM will
perform tests to diagnose critical malfunctions within
itself. Upon passing these tests “Ignition 1”, and
deployment loop voltages are measured to ensure they
are within their respective normal voltage ranges. The
SDM then proceeds with the “Resistance Measurement
Test”. “Passenger Bag Low” terminal “16” is grounded
through a resistor and the passenger current source
connected to “Passenger Bag High” terminal “15” allows a
known amount of current to flow. By monitoring the
voltage difference between “Passenger Bag High” and
“Passenger Bag Low”, the SDM calculates the combined
resistance of the passenger air bag assembly, harness
wiring IB07–YEL/GRN and IB08–YEL/RED connector
terminal contact.
DTC Will Set When:
The combined resistance of the passenger air bag
assembly, harness wiring IB07–YEL/GRN and
IB08–YEL/RED, and connector terminal contact is above
a specified value. This test is run once each ignition cycle
during the “Resistance Measurement Test” when:
1. No “higher priority faults” are detected during
“Turn–ON”,
2. “Ignition 1” voltage is in the specified value.
Action Taken:
SDM turns “ON” the “AIR BAG” warning lamp and sets a
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. This test determines whether the malfunction is in
the SDM.
3. This test verifies connection of the yellow 2–pin
connector.
4. This test cheeks for proper operation of the shorting
clip in the yellow 2–pin connector.
5. The test checks for a malfunction passenger air bag
assembly.
6. This test determines whether the malfunctioning is
due to shortening in the wiring.
Diagnostic Aids:
An intermittent condition is likely to be caused by a short
between IB07–YEL/GRN and IB08–YEL/RED, or a
malfunctioning shorting clip on the passenger air bag
assembly which would require replacement of the air bag
assembly. The test for this diagnostic trouble code is only
run while “AIR BAG” warning lamp is performing the bulb

Page 3503 of 6000

OPEL FRONTERA 1998 Workshop Manual RESTRAINT CONTROL SYSTEM 9J1–16
check, unless DTC 17 or DTC 26 is detected. When a
scan tool “Clear Codes” command is issued and themalfunction is still present, the DTC will

RESTRAINT CONTROL SYSTEM 9J1–16
check, unless DTC 17 or DTC 26 is detected. When a
scan tool “Clear Codes” command is issued and themalfunction is still present, the DTC will not reappear until
the next ignition cycle.
DTC 16 Passenger Deployment loop Resistance Low
StepActionYe sNo
1Was the “SRS Diagnostic System Check” performed?
Go to Step 2
Repeat the “SRS
Diagnostic
System Check”
21. When measurements are requested in this chart use
5–8840–0285–0 DVM with correct terminal adapter from
5–8840–0385–0.
2. Using scan tool data list function, read and record the
passenger deployment loop resistance.
Is passenger resist. less than 1.4 ohms?
Go to Step 3Go to Chart A
31. Ignition switch “Off.”
2. Make sure the passenger air bag assembly yellow 2–pin
connector located behind the glove box assembly is seated
properly.
Is the yellow 2–pin connector connected properly?
Go to Step 4
Seat passenger
air bag assembly
yellow 2–pin
connector
properly
Go to Step 7
41. Disconnect and inspect the passenger air bag assembly
yellow 2–pin connector located behind the glove box
assembly.
2. If ok, reconnect the passenger air bag assembly 2–pin
connector.
3. Ignition switch “ON.”
Is DTC 16 Current?
Go to Step 5Go to Step 7
51. Ignition switch “Off.”
2. Disconnect SRS coil and passenger air bag assembly, yellow
2–pin connector located at the base of the steering column and
behind the glove box assembly.
3. Connect 5–8840–2421–0 SRS driver/passenger load tool and
appropriate adapters to SRS coil and passenger air bag
assembly harness connectors.
4. Ignition switch “ON.”
Is DTC 16 current?
Go to Step 6
Ignition switch
“Off”
Replace the
passenger air
bag assembly
Go to Step 7
61. Ignition switch “Off.”
2. There has been a decrease in the total circuit resistance of the
passenger inflator deployment loop.
3. Use the high resolution ohmmeter mode of the DVM while
checking IB07–YEL/GRN and IB08–YEL/RED, and SDM
connector terminal “15” and “16” to locate the root cause.
Was a fault found?
Replace SRS
harness
Go to Step 7
Go to Chart A
71. Reconnect all components, ensure all component are properly
mounted.
2. Clear diagnostic trouble codes.
Was this step finished?
Repeat the “SRS
Diagnostic
System Check”
Go to Step 7

Page 3504 of 6000

OPEL FRONTERA 1998 Workshop Manual 9J1–17
RESTRAINT CONTROL SYSTEM
DTC 17 Passenger Deployment Loop Open
D09RW014
Circuit Description:
When the ignition switch is turned “ON”, the SDM will
perform tests to diagnose

9J1–17
RESTRAINT CONTROL SYSTEM
DTC 17 Passenger Deployment Loop Open
D09RW014
Circuit Description:
When the ignition switch is turned “ON”, the SDM will
perform tests to diagnose critical malfunctions within
itself. Upon passing these tests, “Ignition 1”, and
deployment loop voltages are measured to ensure they
are within their respective normal voltage ranges. During
“Continuous Monitoring” diagnostics, a fixed amount of
current is flowing in the deployment loop. This produces
proportional voltage drops in the loop. By monitoring the
voltage difference between “Passenger Bag High” and
“Passenger Bag Low”, the SDM calculates the combined
resistance of the passenger air bag assembly, harness
wiring IB07–YEL/GRN AND IB08–YEL/RED, and
connector terminal contact.
DTC Will Set When:
The voltage difference between “Passenger Bag High”
terminal “15” and “Passenger Bag Low” terminal “16” is
above or equal to a specified value for 500 milliseconds
during “Continuous Monitoring”.
Action Taken:
SDM turns “ON” the “AIR BAG” warning lamp and sets a
diagnostic trouble code.
DTC Will Clear When:
The voltage difference between “Passenger Bag High”
terminal “15” and “Passenger Bag Low” terminal “16” is
below a specified value for 500 milliseconds during
“Continuous Monitoring”.
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 SDM.
3. This test verifies proper connection of the yellow
2–pin connector.
4. This test cheeks for proper contact and/or corrosion
of the shorting clip in the yellow 2–pin connector
terminals.
5. The test checks for a malfunctioning passenger air
bag assembly.
6. This test determines whether the open in the wiring.
Diagnostic Aids:
An intermittent condition is likely to be caused by a poor
connection at the passenger air bag assembly harness
connector terminals“2” and “3”, SDM terminals “15” and
“16”, or an open in IB07–YEL/GRN and IB08–YEL/RED.

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