P0732

During normal driving modes the PCM/TCM adapts line pressure to prevent clutch slip and harsh shifts. If 2nd clutch is slipping after pressure is adapted to high line, it is determined that 2nd gear is not available. Second gear clutch is applied by opening circuit 1222 at the PCM.

DTC PARAMETERS
DTC P0732 may be set while driving in 2nd (steady state) or during an up or downshift to 2nd, and when the
PCM has detected the following conditions twice per ignition cycle:
- Vehicle speed is above 5 km/h (3 mph).
- Input shaft speed greater than 224 rpm.
- No input shaft or vehicle speed, or noise DTCs.
- High line pressure has been commanded.
- Ratio failure counter is equal to 255 steady state (counter range is 0-255) or shift counter is greater than 100 on a downshift or upshift.

Diagnostic Chart:

Wiring Diagram:

TEST DESCRIPTION
Numbered steps below refer to numbered steps on chart.
1. Check for DTCs P0745, P0708, P0705, P0706, P0768, P0756, P0758, P0761, P0763, P0782, P0766, P0768, P0783, P0740, P0749, P0744, P0759, P0764, or P0769. They must be eliminated first as a possible cause of DTC P0732.
2. Check solenoid operation. Use solenoid quick check in test section. Listen and compare noise of 2nd gear solenoid to that of other solenoids. The noise of all should be similar.

IMPORTANT: To check solenoid operation, command solenoid quick test using Scan tool.

3. Check pressure regulator valve operation. Use pressure test in test section at end of DTC charts. Make sure pressure increases in correct increments during pressure test. If pressure is low, repair for pressure condition first.
4. For pressure apply points refer to "Test Section Diagnosis.," Apply compressed air with rubber nozzle on air gun. This step will determine if there is an internal problem.
5. If there is a cross leak to another clutch, there may also be another DTC set indicating a gear stuck On. This may help pinpoint the source of the leak. If a leak is detected to lube circuit, check input nut torque.
6. As pressure is applied and released, the clutch plates should also apply and release. Observe oil holes in clutch housing. If oil has darkened and contains clutch plate material, the clutches have probably failed.

REPAIR VERIFICATION
Monitor DTC menu "Code Status" for "Pass Since Code Clear" and "Pass This Ignition Cycle." When both have passed, repair is verified.

Criteria for pass: steady state in 2nd gear with no slip for 0.4 seconds and with engine torque greater than 30 counts for 0.1 seconds.

DIAGNOSTIC AIDS
- When the PCM detects a fault in the circuit (open, ground, short), the PCM will open the circuit internally to protect the circuit.
- Could be a hot or cold only condition. If condition is intermittent try to reproduce conditions in MALF table to reset the DTC.
- If a DTC indicating 3rd or 4th gear is stuck On DTC P0732 will also set. Repair the higher gear DTC first.
- Possible wrong case or Fwd/Rev servo piston installed causing limited travel.