B2300 L4-2.3L (2008)
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RKE system
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SJB
Step 1
Pinpoint Test 5
PINPOINT TEST 5: THE DEMAND LIGHTING IS INOPERATIVE
Normal Operation
The instrument panel dimmer switch controls the demand lighting function. When the instrument panel dimmer switch is closed, the voltage reference
circuit signals the smart junction box (SJB). The SJB monitors the instrument panel dimmer circuit, and based on the status, the SJB will supply voltage
to the interior lamp on circuit (G/L). Circuit (G/L) then supplies voltage to the
interior lamp. The interior lamp relay in the SJB deactivates the voltage after a predetermined time-out.
This pinpoint test is intended to diagnose the following:
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Wiring, terminals or connectors
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Instrument panel dimmer switch
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SJB
Step 1-Step 2