LEMON Manuals: Even more car manuals for everyone
Home >> Acura >> 2012 >> RDX 2.3L Eng VIN TB2 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission >> Road Test

Road Test

  1. Warm up the engine to normal operating temperature (the radiator fan comes on).
  2. With SH-AWD: Apply the parking brake, and block all four wheels.

    Without SH-AWD: Apply the parking brake, and block both rear wheels.

  3. Start the engine, then shift to D while pressing the brake pedal. Press the accelerator pedal, and release it suddenly. The engine should not stall.
  4. Repeat step  3 in all shift lever positions.
  5. Connect the HDS to the DLC (A).
    Fig 1: Identifying Data Link Connector (DLC)
    G08050979Courtesy of AMERICAN HONDA MOTOR CO., INC.
  6. Turn the ignition switch to ON (II). Make sure the HDS communicates with the PCM, and go to the A/T Data List. If it does not, go to the DLC circuit troubleshooting (see DLC CIRCUIT TROUBLESHOOTING ).
  7. Prepare the HDS to take a HIGH SPEED SNAPSHOT (refer to the HDS user's guide for more details if needed):
    • Select High Speed icon.
    • Select these parameters:
      • Vehicle Speed
      • Output Shaft (Countershaft) Speed (RPM)
      • Input Shaft (Mainshaft) Speed (RPM)
      • Engine Speed
      • TP Sensor
      • APP Sensor A (V)
      • ATF Temp Sensor (V)
      • Battery Voltage
      • Shift Control
      • Brake Switch
    • Set the Trigger Type to Parameter.
    • Adjust the Parameter setting to APP Sensor A above 1.2 V.
    • Set the recording time to 60 seconds.
    • Set the Trigger point to -30 seconds.
  8. Find a suitable level road. When you are ready to do the test, press OK on the HDS.
  9. Monitor the HDS, and accelerate quickly until the APP Sensor A reads 1.3 V. Maintain a steady throttle until the transmission shifts to 5th gear, then slow the vehicle and come to a stop.
  10. Save the snapshot if the entire event was recorded, or increase the recording time setting as necessary, and repeat step  9.
  11. Adjust the Parameter setting to 2.4 V. Test-drive the vehicle again. While monitoring the HDS, accelerate quickly until the APP Sensor A reads 2.5 V. Maintain a steady throttle until the transmission shifts to 5th gear (or reasonable speed), then slow the vehicle and come to a stop.
  12. Save the snapshot if the entire event was recorded, or increase the recording time setting as necessary, and repeat step  11.
  13. Accelerate quickly until the accelerator pedal is to the floor. Maintain a steady pedal until the transmission shifts to 3rd gear, then slow to a stop, and save the snapshot.
  14. Review each snapshot individually, and compare the Shift Command, the APP Sensor A (V), and the Vehicle Speed to the following table:
    UPSHIFT: D POSITION (WITH SH-AWD)

    APP Sensor A (V): 1.3 V 
    1st→2nd 6-10 mph (11-15 km/h)
    2nd→3rd 13-17 mph (21-27 km/h)
    3rd→4th 21-27 mph (34-42 km/h)
    4th→5th 37-45 mph (61-71 km/h)
    Lock-up ON 47-53 mph (76-84 km/h)
    APP sensor A (V): 2.5 V 
    1st→2nd 23-27 mph (37-43 km/h)
    2nd→3rd 42-50 mph (69-79 km/h)
    3rd→4th 61-69 mph (98-110 km/h)
    4th→5th 79-89 mph (127-141 km/h)
    Lock-up ON 91-101 mph (147-161 km/h)
    Fully-opened throttle APP sensor A (V): 4.4 V 
    1st→2nd 39-47 mph (64-74 km/h)
    2nd→3rd 67-75 mph (107-119 km/h)
    3rd→4th 101-111 mph (162-178 km/h)
    DOWNSHIFT: D POSITION (WITH SH-AWD)

    APP Sensor A (V): 1.3 V 
    Lock-up OFF 45-50 mph (71-79 km/h)
    5th→4th 32-38 mph (51-61 km/h)
    4th→3rd 15-19 mph (24-30 km/h)
    3rd→1st 5-9 mph (8-14 km/h)
    APP Sensor A (V): 2.5 V 
    Lock-up OFF 65-73 mph (104-116 km/h)
    Fully-opened throttle APP Sensor A (V): 4.4 V 
    5th→4th 109-119 mph (174-190 km/h)
    4th→3rd 79-89 mph (128-142 km/h)
    3rd→2nd 50-58 mph (80-92 km/h)
    3rd→1st 26-32 mph (42-52 km/h)
    UPSHIFT: D POSITION (WITHOUT SH-AWD)

    APP Sensor A (V): 1.3 V 
    1st→2nd 6-10 mph (11-15 km/h)
    2nd→3rd 14-18 mph (23-29 km/h)
    3rd→4th 22-28 mph (36-44 km/h)
    4th→5th 39-47 mph (63-73 km/h)
    Lock-up ON 44-50 mph (71-79 km/h)
    APP Sensor A (V): 2.5 V 
    1st→2nd 23-27 mph (37-43 km/h)
    2nd→3rd 41-49 mph (67-77 km/h)
    3rd→4th 64-72 mph (103-115 km/h)
    4th→5th 60-68 mph (96-108 km/h)
    Lock-up ON 91-101 mph (147-161 km/h)
    Fully-opened throttle APP Sensor A (V): 4.4 V 
    1st→2nd 42-50 mph (68-78 km/h)
    2nd→3rd 70-78 mph (112-124 km/h)
    3rd→4th 107-117 mph (171-187 km/h)
    DOWNSHIFT: D POSITION (WITHOUT SH-AWD)

    APP Sensor A (V): 1.3 V 
    Lock-up OFF 41-47 mph (66-74 km/h)
    5th→4th 32-38 mph (51-61 km/h)
    4th→3rd 15-19 mph (24-30 km/h)
    3rd→1st 5-9 mph (8-14 km/h)
    APP Sensor A (V): 2.5 V 
    Lock-up OFF 71-79 mph (114-126 km/h)
    Fully-opened throttle APP Sensor A (V): 4.4 V 
    5th→4th 109-119 mph (174-190 km/h)
    4th→3rd 74-82 mph (118-132 km/h)
    3rd→2nd 50-58 mph (80-92 km/h)
    3rd→1st 26-32 mph (42-52 km/h)
  15. Drive the vehicle in 4th or 5th gear in S with the sequential sportshift mode, then decelerate and downshift to 2nd gear. The vehicle should immediately begin to slow down from the engine braking, then slow to a stop.
  16. Shift to R, accelerate from a stop at full throttle momentarily, and check for abnormal noise and clutch slippage.
  17. Park the vehicle on a slope (about 16 degrees), apply the brake, and shift into P. 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 if the brake is released.
scientia non olet · About LEMON Manuals