Part 1
INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION
INITIALIZATION
1. PROCEDURES NECESSARY WHEN ECU OR OTHER PARTS ARE REPLACED
*1: New automatic transmission's compensation code.
*2: Read the compensation code from the previous TCM, then transfer it to the new TCM.
*3: Set the transmission compensation code of the current automatic transmission.
2. RESET MEMORY (Automatic transmission system)
NOTICE:
- Perform Reset Memory (AT initialization) when replacing the engine assembly or ECM.
- Reset Memory can be performed only with the Techstream.
- Reset Memory cannot be completed by only disconnecting and reconnecting the cable to the negative (-) battery terminal.
HINT: The TCM (ECT) memorizes the vehicle conditions when controlling the automatic transmission assembly and engine assembly.
(a) The "Reset Memory" procedure is as follows:
(1) Turn the engine switch off.
(2) Connect the Techstream to the DLC3.
(3) Turn the engine switch on (IG).
(4) Turn the Techstream on.
(5) Enter the following menus: Powertrain / ECT / Utility / Reset Memory.
NOTE:
After performing the Reset Memory, be sure to perform the Road Test described previously Road Test.
3. PERFORM ROAD TEST TO ALLOW TCM TO LEARN (Automatic transmission system)
CAUTION:
- Perform the following procedures while strictly observing all traffic laws and speed limits.
- Do not accelerate or decelerate rapidly.
(a) "Road test" procedure is as follows:
(1) Warm up the engine.
(2) According to the replaced parts, perform the road test shown below.
HINT:
- *1: After gradually accelerating for a distance of approximately 130 m (426.4 ft.) for a period of approximately 15 seconds, gradually decelerate for a distance of approximately 45 m (147.6 ft.) for a period of approximately 5 seconds.
- *2: Accelerate the vehicle to a speed slightly higher than 50 km/h (31 mph).
Move the shift lever to M and select 5th gear.
Release the accelerator pedal and allow the vehicle to decelerate gradually.
When the vehicle decelerates to approximately 50 km/h (31 mph), downshift to 4th gear.
When the vehicle decelerates to approximately 40 km/h (25 mph), downshift to 3rd gear.
When the vehicle decelerates to approximately 30 km/h (19 mph), downshift to 2nd gear.
- When decelerating, apply the brakes as necessary to adjust the vehicle speed.
HINT:
- *1: The speed, time and distance values are approximate values.
- *2: After accelerating, the deceleration does not need to be performed immediately.
- *3: There is no specified time or distance.
(3) Repeat the road tests until the shift shock and engine speed overrun (engine speed flare when shifting) reach an acceptable level.
NOTE:
When repeating the acceleration/deceleration cycle of a road test pattern, bring the vehicle to a complete stop before accelerating again.
4. INITIALIZE DISTANCE CONTROL ECU (Dynamic radar cruise control system)
NOTE:
When replacing the distance control ECU, perform the following procedure so that the ECU can learn the specification.
(a) Be sure to perform the following procedure after replacing the distance control ECU.
(1) Turn the engine switch on (IG).
(2) Turn the cruise control main switch on.
(3) With the brake pedal depressed, push the cruise control main switch to RES/ACC 3 times within 3 seconds. Check that the buzzer sounds at this time.
(b) Perform any of the following to cancel beam axis adjustment mode.
- Turn the cruise control main switch off.
- Turn the engine switch off.
- Accelerate the vehicle to 10 km/h or more.
5. CODE REGISTRATION (Engine immobilizer system) (Description of code registration)
HINT:
- The ID codes are the same as recognition codes for the wireless transmitter and the engine immobilizer function. Registering an ID code enables the smart access system with push-button start, the wireless door lock control function and the engine immobilizer function to be operated.
- Code registration is necessary when the certification ECU (smart key ECU assembly), ID code box (immobilizer code ECU), steering lock ECU or key is replaced with a new one.
- The key (for card type) can be registered using the same procedure as the key (for standard type).
(a) Vehicles with the smart access system with push-button start do not have a key slot. Therefore, hold the key close to the engine switch to register the key, as shown in the illustration.
6. CODE REGISTRATION (Engine immobilizer system) (Part replacement and key registration)
(a) The following table shows ECU replacement and key registration procedures for cases in which a malfunctioning ECU has been identified through the troubleshooting of the smart access system with push-button start.
HINT:
- The following procedures can be performed:
- New key ID registration
- Additional key ID registration
- Key ID erasure
- All key ID erasure
- ECU code registration
- If the customer has not brought all the registered keys, replacement of the ID code box (immobilizer code ECU) is also required.
- A maximum of 7 keys can be registered.
7. CODE REGISTRATION (Engine immobilizer system) (Key registration)
(a) PROCEDURE "A"
New key ID registration (when replacing the certification ECU (smart key ECU assembly) and ID code box (immobilizer code ECU), or when replacing the certification ECU (smart key ECU assembly), ID code box (immobilizer code ECU) and steering lock ECU)
- *1: Repeat this process for each key which is to be registered for the vehicle. Finish the procedure for each key within 30 seconds. If the procedure for any of the keys has not been finished within the specified time, perform the registration procedure again from process 1. Make sure that only 1 key is in the cabin during the registration procedure. If 2 or more keys are in the cabin simultaneously, electric waves will interfere with each other, preventing normal registration.
(b) PROCEDURE "B"
New key ID registration (when replacing the certification ECU (smart key ECU assembly))
- *1: Repeat this process for each key registered for the vehicle. Finish the procedure for each key within 30 seconds. If the procedure for any of the keys has not been finished within the specified time, perform the registration procedures again from process 1. If the key confirmation procedure for a key is performed, the security indicator light comes on and remains on until all the keys are confirmed.
- *2: Repeat this process for each key which is to be registered for the vehicle. Finish the procedure for each key within 30 seconds. If the procedure for any of the keys is not finished within the specified time, perform the registration procedures again from 1. Make sure that only 1 key is in the cabin during the registration procedures. If 2 or more keys are in the cabin simultaneously, electric waves will interfere with each other, preventing normal registration.
(c) PROCEDURE "C"
Additional key ID registration
- *1: Perform this process for one of the keys registered for the vehicle. Finish the procedure within 30 seconds. If the procedure has not been finished within the specified time, perform the registration procedures again from process 1.
- *2: Repeat this process for each key which is to be registered for the vehicle. Finish the procedure for each key within 30 seconds. If the procedure for any of the keys is not finished within the specified time, perform the registration procedures again from 1. Make sure that only 1 key is in the cabin during the registration procedures. If 2 or more keys are in the cabin simultaneously, electric waves will interfere with each other, preventing normal registration.
(d) PROCEDURE "D"
Key ID erasure
HINT: Erase all registered key codes except one.
NOTE:
Do not erase all registered key codes except one key (for card type) while the smart access system with push-button start system key cancel is activated. By doing so, the smart access system with push-button start system cannot be returned to its original condition using the key cancel operation Smart Access System With Push-Button Start (for Entry Function). In addition, the entry unlock switching function Smart Access System With Push-Button Start (for Entry Function) cannot be used. However, erasing all registered key codes except one key (for card type) will not cause problems if registering additional keys (for standard).
- *1: Perform this process for one of the keys registered for the vehicle. Finish the procedure within 30 seconds. If the procedure has not been finished within the specified time, perform the erasure procedures again from process 1.
(e) PROCEDURE "E"
All key ID erasure
HINT: All the key codes registered in the vehicle are erased.
(f) PROCEDURE "F"
ECU code registration
- *1: Perform this process for one of the keys registered for the vehicle. Finish the procedure within 30 seconds. If the procedure has not been finished within the specified time, perform the erasure procedures again from process 1.
(g) PROCEDURE "G"
ECU communication ID registration
NOTICE:
- The ECU communication ID should be registered when the ID code box (immobilizer code ECU) and/or the ECM is replaced in order to match these ECU communication IDs.
- The engine cannot be started unless the ECU communication IDs match.
- After the registration, pressing the engine switch may not start the engine on the first try. If so, press the engine switch again.
- Clear DTC B2799 (code for ECM immobilizer communication error) by either of the following:
- Use the Techstream.
- Disconnect the battery for 30 seconds.
(1) Using SST, connect terminals TC and CG of the DLC3.
SST: 09843-18040
(2) Turn the engine switch on (IG) and leave it as is for 30 minutes.
HINT: Do not start the engine.
(3) Turn the engine switch off and disconnect terminals TC and CG.
(4) Check that the engine starts and stays running for more than 3 seconds.
8. VEHICLE IDENTIFICATION NUMBER (VIN) REGISTRATION
(a) DESCRIPTION
HINT: This registration section consists of two parts: Read VIN and Write VIN.
(1) Read VIN: This process allows the VIN stored in the ECM to be read in order to confirm that the two VINs, the one provided with the vehicle and stored in the vehicle ECM, are the same.
(2) Write VIN: This process allows the VIN to be input into the ECM. If the ECM is changed, or the ECM VIN and vehicle VIN do not match, the VIN can be registered, or overwritten in the ECM by following this procedure.
(b) READ VIN
(1) Confirm the vehicle VIN.
(2) Connect the Techstream to the DLC3.
(3) Turn the engine switch on (IG).
(4) Turn the Techstream ON.
(5) Enter the following menus: Powertrain / Engine / Utility / VIN / VIN Read.
(c) WRITE VIN
(1) Confirm the vehicle VIN.
(2) Connect the Techstream to the DLC3.
(3) Turn the engine switch on (IG).
(4) Turn the Techstream ON.
(5) Enter the following menus: Powertrain / Engine / Utility / VIN / VIN Write.
9. ADJUST MILLIMETER WAVE RADAR SENSOR ASSEMBLY (Dynamic radar cruise control system)
CAUTION:
Exposure to radio frequency emissions is hazardous to your health. It is hazardous to your health to be within 20 cm (7.87 in.) of the device's radio frequency aperture.
NOTICE:
- This device complies with FCC radio frequency emission regulations.
- Perform measurements on a level surface.
- Make sure that no large pieces of metal are within a 10 m (32.81 ft.) x 14 m (45.93 ft.) area in front of the vehicle. If possible, the surrounding area should also be free of large metal objects.
(a) Before adjusting the radar beam axis, prepare the vehicle as follows:
(1) Check the tire pressure and adjust it if necessary.
(2) Remove all excess weight from the vehicle (luggage, heavy objects, etc.).
(b) Check and adjust the vertical direction of the radar sensor.
(1) Remove dust, oil, and foreign matter from the radar sensor's level rack.
(2) Set a level on the radar sensor's level rack.
(3) Check that the air bubble is within the red frame on the level.
OK:
The air bubble is within the red frame on the level.
If the bubble is not within the red frame, use a screwdriver to adjust bolt A until the air bubble is within the red frame.
- The adjustable range within the red frame on the level is +/- 0.2°.
- The target angle is +0.2° (upward angle of 0.2°).
Result:
(c) Adjust the reflector height.
(1) Adjust the reflector so that the center of the SST reflector is the same height as the millimeter wave radar sensor.
SST: 09870-60000
09870-60010
09870-60040
HINT: Prepare a 10 m (32.81 ft.) string, a string with a sharp-pointed weight (plumb bob), and a 5 m (16.41 ft.) tape measure.
(d) Place the reflector.
(1) Hang the string with a weight from the center of the vehicle rear emblem. Mark the vehicle rear center point on the ground. Repeat the same procedure for the front of the vehicle.
(2) Set one end of the 10 m (32.81 ft.) string on the vehicle rear center point. Run the string over the vehicle front center point to a position 5 m (16.41 ft.) beyond the vehicle front center point, as shown in the illustration. Mark the 5 m (16.41 ft.) position.
(3) Using the tape measure, measure 12 mm (0.47 in.) to the left of the 5 m (16.41 ft.) position. Place the reflector at that position.
NOTE:
Perform the operation as precisely as possible.
(e) Check the radar beam axis.
(1) Connect the Techstream to the DLC3.
(2) Turn the engine switch on (IG).
(3) Turn the Techstream main switch on, and turn the cruise control main switch on.
(4) Select "Connect to Vehicle".
(5) Select each item on the display screen and proceed to the next screen.
(6) From "System Selection Menu", select "Radar Cruise".
(7) Select "Utility".
(8) Select "Beam Axis Adjustment" and proceed to the next screen.
(9) Follow the Techstream display, and continue with the adjustment.
(10) Confirm that the distance value is approximately 5 m (16.41 ft.).
(11) Check the following items on the laser cruise divergence data screen.
1 Check that a value between 0.0 and 6.3 is displayed in A.
2 Check that a value between 0.0 and 20.7 is displayed in B.
3 Check that Left Side or Right Side is displayed in C.
4 Check that an angle value between 0.0 and 6.3 is displayed in D.
HINT: If the distance is 0 m (0 ft.), the sensor cannot detect the target. Reconfirm that there is no metal in the specified area in front of the vehicle (refer to the NOTICE at the beginning of this adjustment procedure).
(f) Check and adjust the horizontal direction of the radar sensor.
(1) Check that the divergence of the radar beam axis is 0°.
Standard:
0° (Both right and left)
If the divergence is not as specified, use a screwdriver to adjust bolt B until the divergence of the radar beam axis is 0°.
(2) Based on the measured divergence of the beam axis, turn and adjust bolt B for horizontal adjustment of the millimeter wave radar sensor using a screwdriver.
- If "Left Side: 1.0°" is displayed, the divergence is 1.0° to the left. Turn bolt B approximately 3 turns to the negative (-) side.
- If the value does not change to 0°, it is possible that the sensor is aiming at something different. Reconfirm that there are no reflective materials in the surrounding area.
(3) Reset the radar sensor's driving learning values. Prepare a piece of metal that can block radio waves, such as aluminum foil. Cover the radar sensor's left half with the metal for 10 seconds.
NOTE:
Be sure to keep the reflector in place and make sure that there is nothing between the sensor's right half and the reflector.
HINT: When the reset is completed, the buzzer sounds for 10 seconds.
(4) Disconnect the Techstream from the DLC3.
(g) Recheck and readjust the vertical direction of the radar sensor.
(1) Set a level on the radar sensor's level rack.
(2) Check that the level's air bubble is within the red frame.
OK:
Level's air bubble is within the red frame.
If the bubble is not within the red frame, use a screwdriver to adjust bolt A until the level's air bubble is within the red frame.
- The adjustable range within the red frame is +/- 0.2°.
- The target angle is +0.2° (upward angle of 0.2°).
10. SET TRANSMISSION COMPENSATION CODE INTO TCM (step 1) (Automatic transmission system)
NOTE:
Transmission compensation codes are unique, 60-digit alphanumeric values printed on a QR label on the transmission. If an incorrect transmission compensation code is input into the TCM, shift shock may occur.
(a) Record the transmission compensation code specified on the QR label.
HINT: The transmission compensation code is a 60-digit alphanumeric value imprinted on the QR label.
(b) Move the shift lever to N or P.
(c) Connect the Techstream to the DLC3.
(d) Turn the engine switch on (IG).
NOTE:
Do not start the engine.
(e) Turn the Techstream on.
(f) Enter the following menus: Powertrain / ECT / Utility / A/T Code Registration.
(g) Select "Set Compensation Code".
(h) Register the compensation code.
(i) Manually input the transmission compensation code.
(j) Check that the compensation code displayed on the screen is correct by comparing it with the 60-digit alphanumeric value on the QR label.
NOTE:
If an incorrect transmission compensation code is input into the TCM, shift shock will occur.
HINT: Input letters and numbers using the Techstream.
(k) Set the compensation code into the TCM.