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2 2. Turn ON the ignition, with the engine OFF. 3. With a scan tool, observe the ambient light sensor parameter in the Body Does the scan tool indicate that the ambient 1.75- 4.9 V Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems Go to Step 3 3 1. Turn OFF the ignition. 2. Disconnect the ambient light sensor. 3. Turn ON the ignition, with the engine OFF. 4. With a scan tool, observe the ambient light sensor parameter. Does the scan tool indicate that the ambient 4.9 V Go to Step 4 Go to Step 5 4 1. Turn OFF the ignition. 2. Connect a 3-amp fused jumper wire between the ambient light sensor low 3. Turn ON the ignition, with the engine OFF. 4. With a scan tool, observe the ambient light sensor parameter. Does the scan tool indicate that the ambient 1.75 V Go to Step 6 Go to Step 7 5 Test the ambient light sensor signal circuit for - Go to Step 13 Go to Step 10 6 Test the ambient light sensor low reference - Go to Step 13 Go to Step 9 Test the ambient light sensor signal circuit for
2004 Hummer H2 2004 ACCESSORIES & EQUIPMENT Lighting Systems - Hummer H2
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