GM Service Manual Online
For 1990-2009 cars only

Object Number: 889784  Size: MF

Circuit Description

The transaxle control module (TCM) contains two high side drivers to control the power side of the pressure control solenoid and the shift/torque converter clutch solenoids. When the key is in the RUN position, the TCM switches power onto the solenoids. If the TCM detects a continuous Open or Short to Ground in the shift/torque converter clutch solenoids driver circuit, DTC P1833 sets.

Conditions for Setting the DTC

DTC P1833 will set if the TCM detects a continuous open or short to ground in the shift/torque converter clutch solenoid circuit when:

    • Engine speed greater than 500 rpm and not at fuel cutoff
    • System voltage between 8 and 18 volts
    • Shift/torque converter clutch driver commanded On

DTC P1833 is a type A DTC.

Diagnostic Aids

    • The high side drivers are internal to the TCM and cannot be serviced. The only repair possible is to replace the TCM.
    • If a shift solenoid or TCC solenoid code is set, replace TCM first, then check to see if code resets.