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Carefully pry off the ultrasonic sensor cover (A) with a small screwdriver.
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Remove the mounting screws.
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Disconnect the 3P connector (B) from the ultrasonic sensor.
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Inspect the connector and socket terminals to be sure they are all making good contact.
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With the connector still disconnected, make these input tests at the connector.
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If any test indicates a problem, find and correct the cause, then recheck the system.
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If all the input tests prove OK, the ultrasonic sensor must be faulty, replace it.
Cavity
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Wire
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Test condition
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Test: Desired result
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Possible cause if desired result is not obtained
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1
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PNK
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Under all conditions
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Measure the voltage to ground: There should be battery voltage.
|
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2
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GRN
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Alarm control siren 6P connector disconnected
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Check for continuity between the No. 2 terminal and No. 4 terminal of the alarm control siren: There should be continuity.
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An open in the wire
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Check for continuity to ground: There should be no continuity.
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A short to ground in the wire
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3
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BLK
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Under all conditions
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Check for continuity to ground: There should be continuity.
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Poor ground (G602)
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An open in the wire
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|
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