Test point

High beam

Engine off Parking light off High beam off

PST2 display

Engine off Parking light on High beam on PST2 display

If 0 is displayed with the high beam on:

1. Check fuse A 1

2. Switch ignition off and pull off plug on the control module

Switch ignition on

Switch the high beam on and measure the voltage between plug pin 15 (high beam on signal) and ground.

Voltmeter display greater than 10 V

If the high beam signal is present at the control module, replace the control module. If the high beam signal is not present at the control module, check for an open circuit in the wire.

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