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3 the inside rearview mirror. 2. Cover the sensor on the inside rearview mirror back, facing the front window. 3. Shine a bright light into the sensor on the inside rearview mirror face, facing the rear Does the inside rearview mirror darken? - Go to Step 4 Go to Step 5 4 While shining a bright light into the sensor on the - Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems Go to Step 9 5 1. Turn OFF the ignition. 2. Disconnect the harness connector of the inside rearview mirror. 3. Measure the resistance between the ground circuit of the inside rearview mirror and a Is the resistance less than the specified value? 3 ohm Go to Step 6 Go to Step 18 6 1. Turn ON the ignition, with the engine OFF. 2. Measure the voltage between the ignition voltage circuit and the ground circuit of the Is the voltage within the specified range? B+ Go to Step 7 Go to Step 19 7 1. Place the transmission in PARK. 2. Measure the voltage between the backup lamp supply voltage circuit and the ground circuit of Is the voltage less than the specified value? 0.5 V Go to Step 8 Go to Backup Lamps Always On in Lighting Systems 8 1. Place the transmission in REVERSE. 2. Measure the voltage between the backup lamp supply voltage circuit and the ground circuit of Is the voltage within the specified range? B+ Go to Step 15 Go to Step 12 1. Turn OFF the ignition. 2. Disconnect the harness connector C2 of the driver door module (DDM).
2004 Hummer H2 2004 ACCESSORIES & EQUIPMENT Stationary Windows - Hummer H2
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