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Home >> Volvo >> 1998 >> C70 Convertible L5-2.4L Turbo VIN 56 B5254T >> Repair and Diagnosis >> A L L Diagnostic Trouble Codes ( DTC ) >> Testing and Inspection >> Manufacturer Code Charts >> SRS Codes (Supplemental Restraint System) >> SRS-211 >> Steering Wheel Module. Short-Circuit Or Capacitance Too High >> Short-Circuit Or Capacitance Too High

Short-Circuit Or Capacitance Too High






Short-circuit or capacitance too high

Checking DTCs and type of fault

Hint: Before removing components, Volvo System Tester must be used to check if the fault is permanent or intermittent.




Erase diagnostic trouble codes





Continue - Checking DTCs and type of fault, continued

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Diagnostic trouble code (DTC) SRS-211 could be erased
The fault is permanent. The fault may be intermittent. Try to provoke the intermittent fault at each work procedure during continued fault-tracing by shaking the connectors and cables, also turn the steering wheel during measurement.

Continue - Removal of the steering wheel module

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Checking DTCs and type of fault, continued
- Wait at least 10 seconds.
Read off diagnostic trouble code (DTC).
It must not be possible to erase DTC SRS-211 if the fault is permanent.





Can DTC SRS-211 be erased?

Yes - Diagnostic trouble code (DTC) SRS-211 could be erased

No - Removal of the steering wheel module

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Removal of the steering wheel module




Removing steering wheel module

Removing steering wheel module








- Make a note of radio code if anti-theft coded radio installed.
- Ignition off.
- Disconnect battery negative lead.
- Remove steering wheel module in accordance with Steering wheel module, steering wheel and contact reel, replacement Airbag Steering Wheel Module, Steering Wheel and Contact Reel Replacement.

Warning! Under no circumstances use an ohmmeter or other live measuring instrument to take readings on a disconnected non-deployed steering wheel module. This could deploy the airbag.

Caution! Put the steering wheel module with its metal side (back) down in a protected place (in the cargo compartment for example).





Continue - CONTINUE

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CONTINUE - Checking DTCs with the steering wheel module replaced with special tool T998 8695

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Checking DTCs with the steering wheel module replaced with special tool T998 8695












- Connect the special tool to the SRS ignition cable's ignitor connector: 998 8695 TEST DEVICE 998 8695 Test Device

Caution! The special tool must be checked and must be fault free. If the tool is damaged, the diagnostic readings will be incorrect. This will make fault-tracing harder.

- Ignition on.
- Connect the battery's negative lead.
Erase the diagnostic trouble code (DTC).





Continue - Checking DTCs with the steering wheel module replaced with special tool T998 8695, continued

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Checking DTCs with the steering wheel module replaced with special tool T998 8695, continued




- Ignition on.
- Wait at least 10 seconds.
Read off diagnostic trouble code (DTC).
It must be possible to erase DTC SRS-211 if the fault is in the steering wheel module.





Can DTC SRS-211 be erased?

Yes - Reinstalling the steering wheel module.

No - Removal of the steering column covers

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Reinstalling the steering wheel module.




Installing steering wheel module

Installing steering wheel module












- Ignition off.
- Disconnect battery negative lead.
- Remove the special tool 998 8695 TEST DEVICE 998 8695 Test Device.
- Connect connector to steering wheel module.
- Install steering wheel module as per Steering wheel module, steering wheel and contact reel, replacement Airbag Steering Wheel Module, Steering Wheel and Contact Reel Replacement.

Warning! Under no circumstances use an ohmmeter or other live measuring instrument to take readings on a disconnected non-deployed steering wheel module. This could deploy the airbag.





Continue - CONTINUE

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CONTINUE - Checking DTCs with the steering wheel module reinstalled

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Checking DTCs with the steering wheel module reinstalled








- Ignition on.
- Connect the battery's negative lead.
- Wait at least 10 seconds.
Read off diagnostic trouble code (DTC).
DTC SRS-211 must be stored if the fault is in the steering wheel module





Is DTC SRS-211 displayed?

Yes - Replacing a component

No - Removal of the steering wheel module

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Replacing a component
The short-circuit is in the steering wheel module.
- Replace steering wheel module according to: Steering wheel module, steering wheel and contact reel, replacement Airbag Steering Wheel Module, Steering Wheel and Contact Reel Replacement





Select continue when the defect has been remedied.

Continue - FAULT FOUND

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Removal of the steering wheel module




Removing steering wheel module

Removing steering wheel module












- Ignition off.
- Disconnect battery negative lead.
- Remove the steering wheel module.

Warning! Under no circumstances use an ohmmeter or other live measuring instrument to take readings on a disconnected non-deployed steering wheel module. This could deploy the airbag.

Caution! Put the steering wheel module with its metal side (back) down in a protected place (in the cargo compartment for example).

- Install special tool 998 8695 TEST DEVICE 998 8695 Test Device.





Continue - CONTINUE

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CONTINUE - Removal of the steering column covers

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Removal of the steering column covers




Removing steering wheel covers

Removing steering wheel covers








- Ignition off.
- Disconnect battery negative lead.





Remove
- Screws in countersunk outer holes (2 x Torx 15) from beneath cover.
- Screws in inner holes (2 x Torx 25) from beneath cover.
- Ignition key.
- Upper and lower cover from the steering column.

Continue - CONTINUE

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CONTINUE - Checking resistance in the contact reel

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Checking resistance in the contact reel








- Ignition off.
- Disconnect the connector from the contact reel.

- Connect an ohmmeter between the connector pins in the part of the connector (part A in image) that goes to the contact reel.

Caution! Do not damage the terminals in the connector.

The ohmmeter should read infinite resistance.
- Even if the ohmmeter reading is OK, there may still be an intermittent fault in the contact reel.
Repeat resistance measurement and at the same time turn the steering wheel to full lock in both directions.
The ohmmeter should show infinite resistance in all steering wheel positions.





Is the value OK?

OK - Checking resistance in the igniter cable and sensor module

Not OK - Replacing a component

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Replacing a component
If the ohmmeter shows 0 ohms, there is a short-circuit in the contact reel.
If the ohmmeter shows 2-3 ohms there is a short-circuit in the integrated capacitor in the SRS ignition cable's connector ignitor.
- Replace contact reel according to: Steering wheel module, steering wheel and contact reel, replacement Airbag Steering Wheel Module, Steering Wheel and Contact Reel Replacement

Continue - FAULT FOUND

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Checking resistance in the igniter cable and sensor module




- Ignition off.
Connect an ohmmeter between the connector sleeves in the part of the connector (part B in image) that goes to the SRS sensor module.

Caution! Do not damage the connector sleeves.

The ohmmeter should read approx. 47 kohms.





Is the value OK?

OK - Replacing a component

Not OK - Checking the resistance in the ignition cable

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Replacing a component
The igniter cable and the sensor unit are OK.
- Replace contact reel according to: Steering wheel module, steering wheel and contact reel, replacement Airbag Steering Wheel Module, Steering Wheel and Contact Reel Replacement

Continue - FAULT FOUND

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Checking the resistance in the ignition cable








- Ignition off.
- Expose and remove the SRS sensor module connector according to: Replacing the SRS sensor module Service and Repair

Caution! Never touch the sensor unit's terminal pins. There is a risk of static discharge which can damage the sensor module.

Connect an ohmmeter between the connector sleeves in the part of the connector (part B in image) that goes to the SRS sensor module.

Caution! Do not damage the connector sleeves.









The ohmmeter shall show infinite resistance.

OK - Replacing component

Not OK - Replacing a component

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Replacing component
The SRS ignition cabling is OK.
- Replace the sensor unit according to: Replacing the SRS sensor module Service and Repair

Continue - FAULT FOUND

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Replacing a component
If the ohmmeter shows 0 ohms, there is a short-circuit in the igniter cable between the connector and the sensor module.
- Replace SRS cable harness.

Continue - FAULT FOUND

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