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Home >> Geo >> 1996 >> Tracker Base, 4D Utility, 4WD, Automatic >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Diagnosis - Aw03-72LE (With OBD-II) >> Diagnostic Tests >> DTC P0756: No. 2 Shift Solenoid Performance

DTC P0756: No. 2 Shift Solenoid Performance

NOTE: DTC P0756 will set while running in "D" range if gear change control from TCM to the transmission does not agree with actual gear position, even though No. 2 shift solenoid is electrically in good condition. This DTC is commonly caused by a stuck 1-2 or 3-4 shift valve, or clogged valve body fluid passage.
  1. Turn ignition on. Clear DTCs. See CLEARING TROUBLE CODES  under SELF-DIAGNOSTIC SYSTEM. Start engine and allow it to reach normal operating temperature. Road test vehicle and check for correct upshift speeds and TCC apply. See ROAD TEST under TESTING in TRANSMISSION OVERHAUL - A/T article. After road test, recheck for DTCs. If DTC P0756 resets, go to next step. If DTC P0756 does not reset, fault is not present at this time.
  2. Inspect No. 2 shift solenoid operation. See SHIFT SOLENOIDS & TORQUE CONVERTER CLUTCH (TCC) SOLENOID  under COMPONENT TESTING. Replace if necessary. If No. 2 shift solenoid tests okay, go to next step.
  3. Inspect valve body condition. Check for leaks or obstructions in fluid passages. Overhaul if necessary. See VALVE BODY ASSEMBLY under COMPONENT DISASSEMBLY & REASSEMBLY in TRANSMISSION OVERHAUL - A/T article. If valve body and fluid passages are okay, repair faulty 2nd Brake.
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