Opel Frontera UBS. Manual - part 2927

9J1–11

RESTRAINT CONTROL SYSTEM

 Chart C “AIR BAG” Warning Lamp Does Not Come “ON” Steady 

Step

Action

Yes

No

1

1. 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 2

Go to Step 7

2

1. 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 4

Go to Step 3

3

1. 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

4

1. 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

5

1. 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

6

Reconnect all SRS components, ensure all components are
properly mounted.

Was this step finished?

Repeat the “SRS

Diagnostic

System Check”

Go to Step 6

7

Perform chart C.

Was this step finished?

Go to Step 8

Go to Step 1 

8

1. 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

RESTRAINT CONTROL SYSTEM

9J1–12

 Chart C “AIR BAG” Warning Lamp Does Not Come “ON” Steady  (Cont’d)

Step

No

Yes

Action

9

1. Disconnect SRS coil and passenger air bag assemblies.

Yellow 2–pin connectors located at base of steering column
and behind the glove box assembly.

2. Disconnect SDM.
3. Replace “C–10” fuse.
4. Ignition switch “ON” wait 10 seconds.
5. Ignition switch “OFF”.
6. Remove and inspection “C–10” fuse.

Is fuse good?

Install“C–10” fuse

Go to Chart A

Replace SRS

harness

Replace “C–10”

fuse

Go to Step 10

10

Reconnect all SRS components, ensure all components are
properly mounted.

Was this step finished?

Repeat the “SRS

Diagnostic

System Check”

Go to Step 10

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”

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 still

present, the DTC will not reappear until the next ignition
cycle.

DTC 15 Passenger Deployment loop Resistance High 

Step

Action

Yes

No

1

Was the “SRS Diagnostic System Check” Performed?

Go to Step 2

Go to The “SRS

Diagnostic

System Check”

2

1. 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 3

Go to Chart A

3

1. 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

4

1. 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 5

Go to Step 7

5

1. 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

6

1. Ignition switch “Off.”
2. There has been an increase 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

7

1. 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