Open-Circuit Or Short-Circuit To Ground
Open-circuit or short-circuit to ground
Checking fault symptom
Checking fault symptom
Checking fault symptom
- Ignition key in position II.
Check to see if the SRS warning lamp in the combination instrument is lit.
Is the SRS warning lamp in the combined instrument panel lit?
Yes - YES
No - NO
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YES - Checking connector 24/1
NO - SRS warning lamp not lit
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SRS warning lamp not lit
- Ignition off.
Check and replace SRS warning lamp in the combined instrument panel if broken.
Was bulb broken?
Yes - FAULT FOUND
No - Check to see if there is a short-circuit to ground in the combined instrument panel cable
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Checking connector 24/1
- Make a note of radio code if anti theft coded radio
- Ignition off.
- Disconnect battery negative lead.
- Remove left soundproofing panel and knee bolster in accordance with Knee bolster, replacement Service and Repair.
- Remove socket housing E from connector 24/1.
Caution! Avoid touching the sensor module terminal pins. There is a risk of static discharge which could damage the sensor module.
- Check cable terminals in both the connector socket housing and the corresponding connector pin housing terminal 11.
Note! Cable terminals must not be damaged or pressed back.
- Install and remove socket housing E from the connector. Check that socket housing and pin housing lock into each other.
- Following alternatives are possible:
1. Socket housing and pin housing OK
2. Connector socket housing defective
3. Connector pin housing defective
Select one of the above alternatives.
1 - Checking voltage in cable
2 - Replacing component
3 - Replacing component
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Replacing component
Replace cable between connector 24/1 socket housing E terminal 11 and 5/1 combination instrument connector B terminal 3.
Continue - FAULT FOUND
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Replacing component
Replace SRS cable harness.
Continue - FAULT FOUND
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Checking voltage in cable
- Switch ignition key to position II.
- Connect battery negative lead
Connect a voltmeter between a good ground terminal and connecting socket terminal 11 in socket housing E.
The voltmeter should read approx. 8 V.
OK - Checking SRS sensor module connector
Not OK - Replacing component
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Replacing component
Replace cable between connector 24/1 socket housing E terminal 11 and combination instrument 5/1 connector B terminal 3.
Continue - FAULT FOUND
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Checking SRS sensor module connector
- Ignition off.
- Disconnect battery negative lead.
- Expose and remove SRS sensor module connector in accordance with.
Caution! Never touch the sensor module pins. There is a risk of static discharge which could damage the sensor module.
- Check cable terminals in the female connector half and male sensor module connector half.
Note! Cable terminals must not be damaged or pressed back.
- Install and remove connector from sensor module. Check that the connector locks into the sensor module.
- Following alternatives are possible:
1. Female and male connector halves are OK
2. Male sensor module connector half is defective
3. Female connector half is defective
Select one of the above alternatives.
1 - Checking resistance in cable
2 - Replacement of component
3 - Replacement of component
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Replacement of component
- Replace sensor module in accordance with.
Press Continue when fault is repaired.
Continue - FAULT FOUND
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Replacement of component
- Replace SRS cable harness.
Press Continue when fault is repaired.
Continue - FAULT FOUND
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Checking resistance in cable
- Ignition off.
- Connect an ohmmeter between sensor module connector terminal 7 and connector 24/1 part E connecting pin terminal 11, where the disconnected socket housing was connected.
Caution! Never touch the sensor module terminal pins. There is a risk of static discharge which could damage the sensor module.
Note! If the ohmmeter test pins are too big to fit into the sensor module connector, insert a thin metal rod (or a piece of stripped cable) with a maximum diameter of 1 mm (0.04"), and take readings from that. Take care not to damage the connector cable terminals.
The ohmmeter should read approx. 0 ohms.
OK - Replacing component
Not OK - Replacing component
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Replacing component
No open circuit in the cable between connector 24/1 pin housing E terminal 11 and sensor module connector terminal 7.
Replace sensor module in accordance with.
Continue - FAULT FOUND
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Replacing component
If the ohmmeter reads infinity there is an open circuit in the cable between connector 24/1 pin housing E terminal 11 and sensor module connector terminal 7.
- Replace SRS cable harness.
Continue - FAULT FOUND
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Check to see if there is a short-circuit to ground in the combined instrument panel cable
- Make a note of radio code if anti theft coded radio installed.
- Ignition off.
- Disconnect battery negative lead.
- Remove left soundproofing panel and knee bolster in accordance with Knee bolster, replacement Service and Repair.
- Remove socket housing E from connector 24/1.
- Connect an ohmmeter between a good ground terminal and connecting socket terminal 11 in socket housing E.
The ohmmeter should read approx. 3 kohms.
OK - Check to see if there is a short-circuit to ground in the sensor module cable
Not OK - Replacing component
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Replacing component
If the ohmmeter reads approx. 0 ohms there is a short circuit to ground in the cable between connector 24/1E terminal 11 and the combination instrument 5/1.
- Replace cable between connector 24/1 socket housing E terminal 11 and combination instrument 5/1 connector B terminal 3.
Continue - FAULT FOUND
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Check to see if there is a short-circuit to ground in the sensor module cable
- Ignition off.
- Expose and remove SRS sensor module connector in accordance with.
Caution! Never touch the sensor module terminal pins. There is a risk of static discharge which could damage the sensor module.
- Connect an ohmmeter between a good ground terminal and connector 24/1 part E and connecting pin terminal 11 where the disconnected socket housing was connected.
The ohmmeter should read infinity.
OK - Replacing component
Not OK - Replacing component
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Replacing component
No short circuit to ground in the cable between connector 24/1 pin housing E terminal 11 and sensor module connector terminal 7.
- Replace sensor module in accordance with.
Continue - FAULT FOUND
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Replacing component
If the ohmmeter reads approx. 0 ohms there is a short circuit to ground in the cable between connector 24/1 pin housing E terminal 11 and sensor module connector terminal 7.
- Replace SRS cable harness.
Continue - FAULT FOUND
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