Capacitance Too Low

Capacitance too low. Intermittent fault

Intermittent fault




- Ignition off.

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

Caution! Do not touch the terminal pins in the SRS control module. There is a risk of static discharge. This could damage the SRS control module.

Check the connectors for:
- the airbag on the passenger side
- 6-pin
- the SRS control module.
Check for contact resistance and oxidation. See Checking wiring and terminals. Intermittent faults Checking Wiring And Terminals. Intermittent Faults. Check for loose connections. See Checking wiring and terminals. Intermittent faults Checking Wiring And Terminals. Intermittent Faults.
Check the female and male sections of the connector for the supplemental restraint system module (SRS) and the 6-pin connector. The cable terminals must not be damaged or pressed back.
Check the cable between SRS control module terminal #13B (41) and connector (violet) terminal #1 on the passenger side airbag for an intermittent open-circuit according to Checking wiring and terminals. Intermittent faults Checking Wiring And Terminals. Intermittent Faults.
Check the cable between SRS control module terminal #14B (42) and connector (violet) terminal #3 on the passenger side airbag for an intermittent open-circuit according to Checking wiring and terminals. Intermittent faults Checking Wiring And Terminals. Intermittent Faults.

Hint: Check the integrated capacitor in the igniter connector: Measure the resistance.
With the ignition off, connect the test instrument probes between terminals #1 and #3 on the connector (violet) for the driver's airbag. The ohmmeter reading should rise rapidly to infinity.
Reverse the position of the ohmmeter positive and negative test probes. Connect them to the connector as in the previous measurement. The ohmmeter reading must drop rapidly to approximately 0 ohms and then increase to an infinite value.

Remedy as necessary.

Other information:
- To access and replace the SRS control module and connector, see Control module SRS (supplemental restraint system), replacing Service and Repair
- To access the connector (green) for the passenger airbag, see Airbag passenger (SRS), replacing Airbag Passenger (SRS), Replacing
- To connect the breakout box, see Connecting the breakout box Connecting The Breakout Box
- With the ignition off and the 6-pin connector disconnected, the resistance between terminals #1 and #2 on the 6-pin connector (supplemental restraint system module (SRS) side) must be approximately 22 kohms.
- To replace the wiring, see Cable harness SRS system, repair Procedures
- For other values, see Signal specification Signal Specification.









Continue - Fault-tracing information

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Fault-tracing information





Information

Fault-tracing information
If the fault is intermittent, do not verify fault-tracing if the fault does not recur.
It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

Do you want to view the information again?

Yes - Attempt New Test

No - FAULT FOUND

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Attempt New Test - Intermittent fault

FAULT FOUND - DONE

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