Resistance Too High
Resistance too high
Checking the component
Warning! Under no circumstances use an ohmmeter or other live measuring instrument to take readings on a disconnected non-deployed adaptive seat belt force limiter. The adaptive seat belt force limiter could deploy!
Caution! Do not touch the terminal pins in the supplemental restraint system module (SRS). There is a risk of static discharge. This could damage the supplemental restraint system module (SRS).
- Check cables and terminals if the diagnostic trouble code (DTC) is intermittent. Remedy as necessary and select alternative 1 at the bottom
- If the diagnostic trouble code (DTC) is permanent, continue fault-tracing
- Switch off the ignition. Wait 10 seconds
- Disconnect the connector from the driver's adaptive seat belt force limiter
- Connect a special tool to the connector (to the ignition cable). To carry out this procedure, use: 951 1506 Test dummy 951 1506 Test Dummy
Note! The special tool must be checked and fault-free. If the special tool is faulty, the diagnostic readings will be incorrect. This will make fault-tracing harder.
- Switch on the ignition. Wait 10 seconds.
Read diagnostic trouble codes by clicking the VCT2000 symbol.
If the diagnostic trouble code (DTC) changes status from a permanent to an intermittent fault, replace the driver's adaptive seat belt force limiter and select alternative 1 at the bottom.
If the diagnostic trouble code (DTC) is still permanent, select alternative 2 at the bottom.
Other information
- Connecting the breakout box Connecting the Breakout Box, Supplemental Restraint System Module (SRS)
- Signal specification Signal Specification
- For further information about cable routing and terminals, see the wiring diagram
- To access or replace the supplemental restraint system module (SRS) and the connectors. See: Air bag supplemental restraint system Service and Repair
- To access/replace adaptive driver seat belt tensioner and connectors:
Front safety belt retractor Front Safety Belt Retractor
- Checking the special tool
- Disassembling connectors: Igniter wire connector Igniter Wire Connector
- Checking wiring and terminals Checking Wiring and Terminals
Select an alternative!
1 - Verification
2 - Checking the component and wiring
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Checking the component and wiring
- Switch off the ignition. Wait 10 seconds
- Disconnect the special tool from the connector
- Disconnect the connectors from the supplemental restraint system module (SRS).
Warning! Under no circumstances use an ohmmeter or other live measuring instrument to take readings on a disconnected non-deployed adaptive seat belt force limiter. The adaptive seat belt force limiter could deploy!
Caution! Do not touch the terminal pins in the supplemental restraint system module (SRS). There is a risk of static discharge. This could damage the supplemental restraint system module (SRS).
Check the connectors for the adaptive seat belt force limiter and the supplemental restraint system module (SRS). Check for contact resistance. Check for oxidation. Check for loose connections:
Remedy as necessary.
Check the SRS ignition cables between supplemental restraint system module (SRS) and the adaptive seat belt force limiter connector. Check for an open-circuit.
Check the cable between:
- Supplemental restraint system module (SRS) terminal #A48 and the connector for the driver's adaptive seat belt force limiter terminal #1
- Supplemental restraint system module (SRS) terminal #A47 and the connector for the driver's adaptive seat belt force limiter terminal #2.
Remedy as necessary.
Other information
- Connecting the breakout box Connecting the Breakout Box, Supplemental Restraint System Module (SRS)
- Signal specification Signal Specification
- For further information about cable routing and terminals, see the wiring diagram
- To access or replace the supplemental restraint system module (SRS) and the connectors. See: Air bag supplemental restraint system Service and Repair
- To access/replace adaptive driver seat belt tensioner and connectors:
Front safety belt retractor Front Safety Belt Retractor
- For information about the repair of SRS wiring, see: Wiring harness supplemental restraint system (SRS) Wiring Harness Supplemental Restraint System (SRS)
- Checking wiring and terminals Checking Wiring and Terminals
Continue - Verification
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Verification
Verification
Hint: After carrying out the repair check that the fault has been remedied.
- Switch off the ignition. Wait 10 seconds
- Disconnect the battery negative lead
- Reinstall the connectors, components etc.
- Ignition on
- Connect the battery negative lead. Wait 10 seconds.
Warning! There must not be anyone inside the passenger compartment when the battery is connected.
Read diagnostic trouble codes by clicking the VCT2000 symbol.
If the fault is intermittent, the fault has been remedied.
Is the fault intermittent?
Yes - VERIFIED
No - VERIFICATION FAILED
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VERIFIED - FAULT FOUND
VERIFICATION FAILED - Fault-tracing information
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Fault-tracing information
FAULT-TRACING FAILED - No Fault Found
Attempt New Test - Checking the component
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