JB16 Checking Wiring Harness (Circuit 54G)

^ Disconnect right front door Courtesy Switch from vehicle wiring harness.

^ Using a voltmeter, connect positive lead to Courtesy Switch wiring harness connector Circuit 54G and negative lead to battery ground.

^ Is voltage reading greater than 10 volts?

YES -- GO to JB17.

NO -- SERVICE open/short in battery supply voltage circuit. REPEAT Service Bay Diagnostics. Reading and Clearing Diagnostic Trouble Codes