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3 2. Disconnect the Start 1 relay. 3. Turn ON the ignition, with the engine OFF. 4. Probe the battery positive voltage of the Start 1 relay coil circuit with a test lamp Does the test lamp illuminate? Go to Step 4 Go to Step 8 4 1. Connect a test lamp between the control circuit of the Start 1 relay and the battery 2. Turn the ignition back and forth from the ON to START positions. Does the test lamp turn ON and OFF with each Go to Step 6 Go to Step 5 5 Test the control circuit of the Start 1 relay for a Go to Step 11 Go to Step 7 6 Inspect for poor connections at the Start 1 relay. Go to Step 11 Go to Step 9 7 Inspect for poor connections at the PCM. Refer Go to Step 11 Go to Step 10 8 Repair the battery positive voltage circuit of the Go to Step 11 - 9 Replace the Start 1 relay. Refer to Relay Go to Step 11 - 10 IMPORTANT: The replacement PCM must be programmed.
2004 Hummer H2 2004 ELECTRICAL Engine Electrical - Hummer H2
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