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TOW/HAUL SWITCH/INDICATOR ALWAYS ON OR INOPERATIVE 11 indicate proper voltage for an open. - Go to Step 17 Go to Step 15 12 Test the affected signal circuits of the TR switch for a - Go to Step 17 Go to Step 15 13 Test the ground circuit of the TR switch for an open. - Go to Step 17 Go to Step 14 14 Replace the TR switch, this switch is part of the - Go to Step 17 - 15 Replace the PCM. - Go to Step 17 - 16 Replace the IPC. - Go to Step 17 Go to Step 2 17 1. Turn ON the ignition, with the engine OFF. 2. With the scan tool, observe the TR Sw. display while selecting each transmission range: P, R, N, Does each selected transmission range match the scan - System OK Go to Step 2
2004 Hummer H2 2004 TRANSMISSION Automatic Transaxle - 4L60-E/4L65-E (Troubleshooting)
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