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DTC P0562 DTC P0563 Step Action Value (s) Yes No Schematic Reference:Starting and Charging Schematics 1 Did you perform the Engine Electrical Diagnostic System - Go to Step 2 Go to Diagnostic System Check - Engine Electrical 2 With the scan tool monitor the Ignition 1 signal voltage in 11 V Go to Step 4 Go to Step 3 3 Test the ignition feed circuit to the PCM for high - Go to Step 7 Go to Step 5 4 1. Inspect for poor connections at the PCM. Refer to Testing for Intermittent Conditions and Poor 2. If you find a poor connection, repair the condition as necessary. Refer to Wiring Repairs in Wiring Did you find and correct the condition? - Go to Step 7 Go to Step 6 5 Repair the ignition feed circuit to the PCM for an open or - Go to Step 7 - 6 Replace the PCM. Refer to Powertrain Control Module IMPORTANT: The replacement PCM must be programmed. - Go to Step 7 - 7 1. Select the Diagnostic Trouble Code (DTC) option and the Clear DTC Information option using the 2. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting Does the DTC reset? - Go to Step 2 System OK
2004 Hummer H2 2004 ELECTRICAL Engine Electrical - Hummer H2
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