Initial Inspection and Diagnostic Overview
Road Test1. Warm up the engine to normal operating temperature (the radiator fan comes on).
2. Apply the parking brake, and block both rear wheels. Start the engine, then shift to the D position while pressing the brake pedal. Press the accelerator pedal, and release it suddenly. The engine should not stall.
3. Repeat step 2 in the D3 position.
4. Connect the HDS to the DLC (A), and go to the A/T data list.
NOTE: '07 model: If the HDS does not communicate with the PCM, troubleshoot the DLC circuit.
5. Test-drive the vehicle on a flat road in the D position. Check for abnormal noise and clutch slippage. While driving, check that the shift points occur at the proper speeds by monitoring the accelerator pedal position sensor A voltage with the HDS and comparing your shift point speeds and voltage to those in the table. (The accelerator pedal position sensor A voltage represents the throttle opening.)
6. Accelerate to about 35 mph (57 km/h) so the transmission is in 4th or 5th gear in M position, then shift down to 2nd gear. The vehicle should immediately begin to slow down from engine braking.
7. Check for abnormal noise and clutch slippage in the R position.
Accelerate from a stop at full throttle momentarily, and check for abnormal noise and clutch slippage.
8. Test in P (Park) Position.
Park the vehicle on a slope (about 16 degrees), apply the brake, and shift into the P position. Release the brake; the vehicle should not move.
NOTE: Always use the brake to hold the vehicle, when stopped on an incline in gear. Depending on the grade of the incline, the vehicle could roll backwards if the brake is released.
If the vehicle is allowed to roll backwards while the transmission is in a forward position, the engine may stall, resulting in reduced steering and backing efficiency.