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Home >> Volvo >> 1998 >> V70 GL L5-2.4L VIN 55 B5254S >> Repair and Diagnosis >> A L L Diagnostic Trouble Codes ( DTC ) >> Testing and Inspection >> Manufacturer Code Charts >> SRS Codes (Supplemental Restraint System) >> SRS-223

SRS-223

Diagnostic Trouble Code (DTC) SRS-223 - Passenger Airbag, short-circuit to ground

Special tools:
- 998 8695
- Volvo Scan Tool (ST)

DTC Conditions
If voltage in the circuit is low (0 V) for over 10 seconds, the diagnostic trouble code (DTC) SRS-223 is stored.

Cause of fault
Voltage too low.
- Short-circuit to ground in the SRS ignition cable or connectors between passenger module and SRS sensor module.
- Short circuit to ground in the passenger module.

Fault symptoms
No symptoms apart from the SRS warning lamp coming on.

WARNING: There is a risk that the SRS passenger module will not work if this DTC is posted.

Action
The fault can be found by a process of elimination.

WARNING: Under no circumstances use an ohmmeter or other live measuring instrument to take readings on a disconnected non-deployed passenger module. This could deploy the airbag.

NOTE: Follow the operations described in this chapter carefully and carry out operations in the correct order.

Checking Diagnostic Trouble Code (DTC) And Type Of Fault




Before starting to remove components, the Volvo Scan Tool (ST) should be used to check whether the fault is permanent or intermittent.

- Connect the Volvo Scan Tool (ST). Displaying & Reading Trouble Codes
- Read off diagnostic trouble code (DTC).
- Clear diagnostic trouble code (DTC).
It should not be possible to clear diagnostic trouble code (DTC) SRS-223 if the fault is permanent.

If diagnostic trouble code (DTC) SRS-223 could not be cleared (the fault persists):
The fault is permanent.
- Continue with disconnecting passenger module connector.

If diagnostic trouble code (DTC) SRS-223 could be cleared:
The fault is not permanent. The fault could be intermittent.
Attempt to provoke the intermittent fault at every step of the fault tracing process by shaking connectors and cabling while taking readings.
- Continue with disconnecting passenger module connector.

Disconnecting Passenger Module Connector




- Make a note of radio code if anti-theft coded radio installed.
- Ignition off.




- Disconnect battery negative lead.




- Remove glove compartment.
- Disconnect passenger module connector.

WARNING: Under no circumstances use an ohmmeter or other live measuring instrument to take readings on a disconnected non-deployed passenger module. This could deploy the airbag.

- Continue with checking DTCs with the passenger module replaced by special tool 9988695.

Checking DTCs With The Passenger Module Replaced By Special Tool 9988695




- Connect special tool 9988695 to SRS ignition cable igniter connector.

NOTE: The special tool should be checked and defect-free. If the tool is defective it will cause errors in the diagnosis and make fault tracing harder. If in doubt check the special tool.




- Switch ignition to position II.




- Connect battery negative lead.




- Read off diagnostic trouble code (DTC)
- Clear diagnostic trouble code (DTC).
It should be possible to clear diagnostic trouble code (DTC) SRS-223 if the fault is in the passenger module.

If diagnostic trouble code (DTC) SRS-223 could be cleared:
No fault detected by the SRS on-board diagnostic (OBD) system with the passenger module disconnected and replaced by special tool 9988695.
The fault is probably in the passenger module. One last check should be made before replacing the passenger module.
- Continue with installing passenger module connector.

If diagnostic trouble code (DTC) SRS-223 could not be cleared (the fault persists):
The fault persists even with the passenger module disconnected. This means that the passenger module is OK.
The fault is probably in the SRS ignition cable.
- Continue with checking to see if the SRS ignition cable is short-circuited to ground.

Installing Passenger Module Connector




- Ignition off.




- Disconnect battery negative lead.




- Remove special tool 9988695.




- Connect connector to passenger module.

WARNING: Under no circumstances use an ohmmeter or other live measuring instrument to take readings on a disconnected non-deployed passenger module. This could deploy the airbag.

- Continue with checking diagnostic trouble code (DTC) with the passenger module connected.

Checking Diagnostic Trouble Code (DTC) With The Passenger Module Connected




- Switch ignition to position II.




- Connect battery negative lead.




- Read off diagnostic trouble code (DTC).
If the fault is in the passenger module diagnostic trouble code (DTC) SRS-223 should be stored.

If diagnostic trouble code (DTC) SRS-223 is present:
There is a short-circuit in the passenger module.
^ Replace passenger module. Passenger Module Replacement

If no diagnostic trouble code (DTC) is present:
The SRS on-board diagnostic (OBD) system has not detected a fault with the passenger module connected.
The fault could be intermittent in the SRS ignition cable.
- Continue with disconnecting passenger module connector.

Disconnecting Passenger Module Connector




- Ignition off.




- Disconnect battery negative lead.




- Disconnect passenger module connector.

WARNING: Under no circumstances use an ohmmeter or other live measuring instrument to take readings on a disconnected non-deployed passenger module. This could deploy the airbag.

- Continue with checking to see if the SRS ignition cable is short-circuited to ground.

Checking To See If The SRS Ignition Cable Is Short-circuited To Ground




- Ignition off.




- Disconnect battery negative lead.




- Remove special tool 9988695.




- Separate connector 24/33 on SRS ignition cable.
- Remove SRS ignition cable.
- Check that SRS ignition cable sleeve is in good condition (for a short-circuit to ground).

If the SRS ignition cable is OK:
The fault is probably in the SRS ignition cable in the SRS cable harness between the connector 24/33 and the sensor module or there is a short-circuit to ground in the sensor module.
- Continue with checking for short-circuit to ground in SRS ignition cable in SRS cable harness and the sensor module.

If the SRS ignition cable is defective:
^ Replace passenger module SRS ignition cable. Passenger Module Replacement

Checking For Short-circuit To Ground In SRS Ignition Cable In SRS Cable Harness And The Sensor Module




- Ignition off.




Connect an ohmmeter between a good ground terminal and the connection sockets in the SRS sensor module halt of connector 24/33 (part B in the figure).
Take care not to damage connecting sockets.
- Connect one ohmmeter test terminal to ground.
- Take an ohmmeter reading with the other test terminal against the female connector half terminal 1.
- Then take an ohmmeter reading against female connector half terminal 2.
The ohmmeter should read approx. 25 Kohms or approx. 72 Kohms.

If both readings are OK:
SRS ignition cable in the SRS cable harness between connector 24/33 and the sensor module is OK.
^ Replace passenger module SRS ignition cable.

If the reading is abnormal:
If the ohmmeter reads approx. 0 Ohms for terminals 1 or 2, there is either a short-circuit to ground in the SRS ignition cable in the SRS cable harness between connector 24/33 and the sensor module, or there is a short-circuit to ground in the sensor module.
- Continue with checking for short-circuit to ground in SRS ignition cable in the SRS cable harness.

Checking For Short-circuit To Ground In SRS Ignition Cable In The SRS Cable Harness




- Ignition off.
- Expose and remove SRS sensor module connector in accordance with EJ2, EJ3 and EJ4.





CAUTION: Never touch the sensor module pins. There is a risk of static discharge which could damage the sensor module.




Connect an ohmmeter between a good ground terminal and the connection sockets in the SRS sensor module half of connector 24/33 (part B in the figure).
Take care not to damage connecting sockets.
- Connect one ohmmeter test terminal to ground.
- Take an ohmmeter reading with the other test terminal against the female connector half terminal 1.
- Then take an ohmmeter reading against female connector half terminal 2.
The ohmmeter should read infinite resistance in both cases.

If both readings are OK:
SRS ignition cable in the SRS cable harness between connector 24/33 and the sensor module is OK.
^ Replace sensor module. SRS Sensor Module - Replacement

If the reading is abnormal:
If the ohmmeter reads approx. 0 Ohms for terminals 1 or 2, there is either a short-circuit to ground in the SRS ignition cable in the SRS cable harness between the connector 24/33 and the sensor module.
^ Replace SRS cable harness. SRS Sensor Module - Replacement
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