SRS-213
Diagnostic Trouble Code (DTC) SRS-213 - Steering wheel module, short-circuit to groundSpecial 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-213 is stored.
Cause of fault
Voltage too low.
- Short-circuit to ground in the SRS ignition cable or connectors between steering wheel module and SRS sensor module.
- Short-circuit to ground in the steering wheel module.
- Short-circuit to ground in the contact reel.
Fault symptoms
No symptoms apart from the SRS warning lamp lighting.
WARNING: There is a risk that the SRS steering wheel module will not work if this diagnostic trouble code (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 steering wheel module. This could deploy the airbag.
NOTE: Follow the operations in the 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.213 if the fault is permanent.
If diagnostic trouble code (DTC) SRS-213 could not be cleared (the fault persists):
The fault is permanent.
- Continue with removing steering wheel module.
If diagnostic trouble code (DTC) SRS-213 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 and turning the steering wheel while taking readings.
NOTE: If no fault has been isolated by the end of the fault tracing process start by replacing the contact reel.
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. Steering Wheel Module, 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.
NOTE: Put the steering wheel module with its metal side (back) down in a protected place (in the cargo compartment for example).
Checking Diagnostic Trouble Codes (DTC) With Steering Wheel Module Replaced By Special Tool 9988695
- Connect special tool 9988695 to SRS ignition cable igniter connector.
NOTE: The special tool should be checked and faultless. If the tool is defective it will cause errors in the diagnosis and make fault tracing harder. If in doubt check the special tool. Calibrating Special Tool 998 8695
- 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-213 if the fault is in the steering wheel module.
If diagnostic trouble code (DTC) SRS-213 could be cleared:
No fault detected by the SRS on-board diagnostic (OBD) system with the steering wheel module removed and replaced by special tool 9988695.
The fault is probably in the steering wheel module. One last check should be made before replacing the steering wheel module.
- Continue with Installing steering wheel module.
If diagnostic trouble code (DTC) SRS-21 3 could not be cleared (the fault persists):
The fault persists even with the steering wheel module removed. This means that the steering wheel module is 0k.
he fault is probably in the contact reel or SRS ignition cable.
- Continue with Removing steering wheel covers.
Installing Steering Wheel Module
- Ignition off.
- Disconnect battery negative lead.
- Remove special tool 9988695.
- Connect connector to steering wheel module.
- Install 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
Checking Diagnostic Trouble Code (DTC) With The Steering Wheel Module Installed
- Switch ignition to position II.
- Connect battery negative lead.
- Read off diagnostic trouble code (DTC). It the fault is in the steering wheel module diagnostic trouble code (DTC) SRS-213 should be stored.
If diagnostic trouble code (DTC) SRS-213 is present:
There is a short-circuit in the steering wheel module.
^ Replace steering wheel module.
If no diagnostic trouble code (DTC) is present:
The SRS on-board diagnostic (OBD) system has not detected a fault with the steering wheel module installed.
The fault is intermittent in the contact reel or SRS ignition cable.
Removing Steering Wheel Module
- Ignition off.
- Disconnect battery negative lead.
- Remove 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.
NOTE: Put the steering wheel module with its metal side (back) down in a protected place (in the cargo compartment for example).
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.
Checking To See If The Contact Reel Is Short Circuited To Ground
- Ignition off.
- Disconnect contact reel connector.
Connect an ohmmeter between a good ground terminal and the connection pins in the contact reel half of the connector (part A in the figure).
Take care not to damage connector pins.
- Connect one ohmmeter test terminal to ground.
- Take an ohmmeter reading with the other test terminal against the male connector half terminal 1.
- Then take an ohmmeter reading against male connector half terminal 2.
The ohmmeter should read infinite resistance.
Even if the ohmmeter reading is OK there may be an intermittent fault in the contact reel.
- Repeat resistance measurements while slowly turning the steering wheel to full lock in both directions.
The ohmmeter should read infinite resistance.
If all readings are OK:
The contact reel is OK.
The short-circuit to ground is probably in the SRS ignition cable from the connector to the sensor module.
- Continue with Check to see if there is a short-circuit to ground in the SRS ignition cable to the sensor module.
If the reading is abnormal:
If the ohmmeter reads approx. 0 Ohms there is a short-circuit to ground in the contact reel.
^ Replace contact reel. Steering Wheel Module, Contact Reel - Replacement
Check To See If There Is A Short-circuit To Ground In The SRS Ignition Cable To The Sensor Module
- Ignition off.
Connect an ohmmeter between a good ground terminal and the connection sockets in the SRS sensor module half of the connector (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 cabling and sensor module are OK.
^ Replace contact reel. Steering Wheel Module, Contact Reel - 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 between the connector and the sensor module, or there is a short-circuit to ground in the sensor module.
Checking To See If The SRS Ignition Cable Is Short-circuited To Ground
- Ignition off.
- Expose and remove SRS sensor module connector. SRS Sensor Module - Replacement
NOTE: 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 the SRS ignition cable contact reel connector (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:
The SRS ignition cable 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 a short-circuit to ground in the SRS ignition cable between the connector and sensor module
^ Replace SRS cable harness.