Signal Too High. Intermittent Fault

Signal too high. Intermittent fault

Intermittent fault




- Ignition off.

Warning! Never use an ohmmeter or any other charged measuring instrument on a disconnected, undeployed explosive air bag. There is a risk that the air bag could be deployed!

Caution! Avoid touching the contact pins in the supplemental restraint system (SRS) control unit. There is a risk of an electrostatic discharge which can cause damage to the supplemental restraint system (SRS) control unit.

Check the connectors to:
- the left side air bag
- the 2 pin connector
- the supplemental restraint system (SRS) control unit.
for contact resistance and oxidation as described in Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults and for a loose contact as described in Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Check the wire between the supplemental restraint system (SRS) control unit 4A (4) and the 2 pin connector 1 for an intermittent short circuit to voltage supply as described in Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Check the wire between the supplemental restraint system (SRS) control unit 3A (3) and the 2 pin connector 2 for an intermittent short circuit to voltage supply as described in Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Check the wire between the 2 pin connector 1, 2 and connector 1, 3 on the left side air bag for an intermittent short circuit to voltage supply as described in Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Do the necessary corrective action.

Additional information:
- To access/replace the supplemental restraint system (SRS) control unit and connector, Service and Repair.
- To access the left side air bag connector, see Airbag driver and passenger (SRS), replacing Airbag Driver and Passenger (SRS), Replacing
- To connect the test box, see Connecting the breakout box Connecting the Breakout Box, Supplemental Restraint System Module (SRS)
- With ignition off and the 2 pin connector disconnected, the resistance between the 2 pin connector 1, 2 (to the supplemental restraint system (SRS) control unit) and the disconnected battery positive lead should be infinite
- For more information on removal of battery cables, see Battery, disconnecting Battery Disconnecting
- With ignition off and the 2 pin connector disconnected, the resistance between the 2 pin connector 1 and 2 (to the supplemental restraint system (SRS) control unit) should be approximately 22 kohms
- For information on repairing the SRS wiring, see Cable harness SRS system, repair Procedures
- For additional values, see Signal specification Signal Description, Supplemental Restraint System (SRS) Control Unit.













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Trouble-shooting 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).

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Attempt New Test - Intermittent fault

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