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Repairs in Wiring Systems. Go to Step 30 Go to Step 15 15 Test the battery positive voltage bus bar circuit of the Go to Step 29 Go to Step 16 16 Test the ignition 1 voltage bus bar circuit of the underhood Go to Step 29 Go to Step 27 17 1. Turn OFF the ignition. 2. Probe the mounting stud for the battery positive cable at the underhood junction block with a test lamp that Does the test lamp illuminate? Go to Step 29 Go to Diagnostic System Check - Engine Electrical in Engine 18 1. Turn OFF the ignition. 2. Remove the ignition relay with the J 43244 from the underhood junction block. Refer to Relay 3. Probe the battery positive voltage circuit of the ignition relay at the underhood junction block with a Does the test lamp illuminate? NOTE: Refer to Test Probe Notice in Cautions and Go to Step 19 Go to Step 29 19 1. Turn ON the ignition, with the engine OFF. 2. Probe the ignition 1 voltage circuit of the ignition relay at the underhood junction block with a test
2004 Hummer H2 2004 ENGINE PERFORMANCE Engine Controls (Troubleshooting) - 4.8L, 5.3L, and 6.0L - Hummer H2
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