Testing Components and Functions. SRS

Calibrating special tool 998 8695
998 8695 TEST DEVICE 998 8695 Test Device
General
It is important when fault tracing and checking the SRS system that the special tool is fault free. A defective special tool will cause faulty readings in the diagnostic system and make fault tracing and checking more difficult.
To ensure that the special tool is fault free it should be calibrated using an ohmmeter before use.
Prior to calibration the integral short-circuiting element must be disabled as follows.





Continue - Disabling short-circuit

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Disabling short-circuit
- Disable the short-circuiting element between the pins by pressing an 8 mm long plastic tube into the terminal as illustrated.
Use a piece of cabling harness protective sleeve, P/N. 185 506-3.





Continue - Measuring resistance

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Measuring resistance
Use an ohmmeter to measure the resistance in the special tool.




- Connect the ohmmeter test terminals to the special tool pins as illustrated.





The ohmmeter should read between 1.8 and 2.5 ohms.

OK - Fault tracing information

Not OK - Fault tracing information

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Fault tracing information
The special tool is OK.
- Remove the piece of sleeve from the pins.

Continue - DONE

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Fault tracing information
The special tool is defective.
- Scrap the tool and replace it.

Continue - FAULT FOUND

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