Garage Shifts
GARAGE SHIFTSPerform garage shift test prior to continuing road test to make sure the PCM/TCM inputs are connected and functioning properly.
1. Move the transaxle control assembly to Park (P) and set parking brake.
2. Connect a Scan tool to DLC
3. Start engine.
4. Verify the following signals are present on Scan tool:
- Engine Speed (RPM)
- Input Shaft Speed Sensor
- Output Shaft Speed Sensor
- Vehicle Speed
- TR Switch - P/A/B/C
- PRNDL Select
- Desired PC Solenoid Current
- Actual PC Solenoid Current
- PC Solenoid Duty Cycle
- Brake Switch
- Engine Coolant Temperature (ECT)
- Transaxle Fluid Temperature
- Throttle Angle
- System Volts
- Transmission Range
5. Monitor BRAKE SWITCH signal while tapping on brake pedal with your foot. The brake switch signal should be:
- Released - when brake pedal is released.
- Applied - when brake pedal is applied.
6. Monitor the TRANSMISSION RANGE signal and move gear selector through all ranges. Verify TRANSMISSION RANGE value matches gear range selected on console. The gear selections should be immediate and not harsh.
7. Move control assembly to Neutral (N) and monitor throttle angle signal while increasing and decreasing engine RPM with accelerator pedal. The throttle angle should increase with engine RPM.
8. Check for and note any Diagnostic Trouble Codes (DTCs).