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Home >> Pontiac >> 2006 >> Vibe Base, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Automatic Transmission - Mu4 - Service, Removal & Installation, Troubleshooting & Diagnostics) >> Diagnostic Information and Procedures >> DTC P0753 >> Circuit Description

Circuit Description

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Shift solenoid #1 and shift solenoid #2 are used together to electronically control the shifting of the transaxle from 1st gear to 4th gear/Overdrive. The powertrain control module (PCM) outputs system voltage to turn ON/energize or remove voltage to turn OFF/de-energize either solenoid when it deems necessary. The transaxle shifts with the combination of both solenoids being turned ON and OFF. Shift solenoid #1 is normally ON in 1st and 2nd gears and never ON in 3rd or 4th gears. Shift solenoid #2 is normally ON in 2nd and 3rd gears and never ON in 1st or 4th gears. Fourth gear/Overdrive is obtained when both shift solenoids are OFF.

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