The VT3 transmission must not be towed. This is because there is no oil pressure in
the primary pulley unless the engine is running and belt slip would therefore occur.
Recovery must be conducted with the front wheels lifted clear of the ground
(suspended tow).

1.2. Service intervals

At least every 2year or 60.000 km the transmission needs a refill of the oil and a
replacement of the oil filter. For this purpose, the gearbox is equipped with an oil
drain plug and a top filler plug. The vehicle manufacturer can reduce the service
interval of the transmission to match it with the standard service intervals for the
vehicle.

1.3. Oil specification

ESSO EZL799(A).
or
IDEMITSU CVTF-EX1
or
PETRONAS Tutela Transmission CVT-PPT

The use of other oil will lead to damages in the transmission and will result in rejection
of warranty claims.
Oil refill/check procedure, see service instruction 2.1
Oil level checks procedure, see service instruction 2.2

1.4. CNG,LPG

The risk of changing fuel system:
-the vehicle will has different or unstable out of torque, this will cause:

-Different performance
-Very bad driving adaption
-Fault code
-Clutch problem
-Clutch adaption problem
-Belt slipping

Punch does not allow changing fuel system. Please use oil which we suggest
one. Use another oil will cause CVT problem, and will be out of warranty.

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1.5.1. xTCU Interfaces

Fig.1: xTCU interfaces

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1.5.2. Transmission connector layout

The TCU communication with the transmission goes through a connector and is
transferred through the internal cable harness. The pin layout of the connector is as
shown below:

Fig. 2: The transmission connector Layout.

Signals:
DMS:

“Drive Mode Sensor” or “Position / Inhibitor sensor”

EDS_1:

Primary pressure regulator (solenoid)

EDS_2:

Secondary pressure regulator (solenoid)

EDS_3:

Clutch pressure regulator (solenoid)

P_S2:

Secondary pressure sensor

N_ab:

Secondary speed sensor

N_S1 or N_Prim:

Primary speed sensor

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Fig.3: xTCU connection to transmission and vehicle

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xTCU pin assignment

VT2-VT3

– signal

xTCU Pin

Permanent Supply Kl.30

Ignition Kl.15 (wake-up)

Ground Kl.31

M1; M4

VHSD1 (actuator supply)

Speed- & DMSensor supply (8,4V)

Pressure sensor supply (5V)

GND Drive mode sensor

GND: Sensor Ground

Transmission oil temperature

N_Prim (primary speed input)

N_ab (speed signal)

N_MOT (engine speed signal)

DMS_A

DMS_B

DMS_C

DMS_D

Dig.Inp1 (pull-up K30) (Brake signal)

Dig.Inp2 (pull-up K30) (Sport/Instruction)

Dig.Inp3 (pull-up K30) (Tip up)

Dig.Inp4 (pull-up K30) (Tip down)

Winter mode / Stepped AT mode

(Optional)

P_S2 (secundary pressure)

Shift Lock

K-Line

CAN-High

CAN-Low

Start lock

EDS1

EDS2

EDS3

Back light relay

Digital input

Error Lamp

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Introduction:
After:

-uploading new software in the TCU or
-replacement of transmission or
-replacement of TCU
-replace hydraulic unit,

the clutches need an adaptation to compensate for tolerances.
This can be done by executing shift actions during idle.
The  TCU  warning  lamp  will  blink  at  a  2  second  interval  until  the  clutch  adaptation
procedure is completed.
Once this procedure is completed, lifetime adaptation occurs automatically.

Pre-conditions:
These preconditions need to be met before starting the clutch adaptation procedure
-  Stable torque and rotations per minute (rpm) in idle state are required. Engine

adaptation needs to be completed successfully for this. For more information on
engine adaptation, please refer to the Engine Control Unit (ECU) supplier

’s

documentation.

Engine rpm requirement:

ECU target value +/- 100 rpm

Engine torque requirement:

ECU target value +/- 4Nm

- The transmission oil temperature needs to be between 20°C and 60°C.
In case the TCU was adapted before (uploading new software in the TCU or
replacement of transmission), the TCU needs to be reset first. This is done using the
MLT tool. Please refer to the MLT documentation for more information.

Procedure:
Note: prepare all things, then will carry out next step for D clutch adaption
- Vehicle speed =0km/h
-do not give gas
-brake pedal works
-shift to D
Clutch adaption procedure will auto works. If disturbs during clutch learning, the fault
code FC55 (P1774) will be active, at this time the warning lamp will be on.
Everything is ok. It will take 40sec to clutch adaption in D. if clutch adaption cannot
finish in 120sec, this time clutch adaption will become failure.

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When finish D clutch adaption, now we can do R clutch adaption.
- Vehicle speed =0km/h
-do not give gas
-brake pedal works
-shift to R

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As soon as the procedure is finished (warning lamp stop blinking), the fault code
P081A (EoL Clutch adaptation not finished) itself will become inactive and
automatically deleted after 3 driving cycles.
Troubleshooting:
Problem

Possible Cause

Action

Warning
lamp

still

blinking  after
15  or  more
adaptation
cycles.
(Adaptation
process  not
completed)

Transmission oil
temperature

below

20°C

during adaptation
process.

- Allow the transmission to heat up (Engine on).
- Restart adaptation procedure.

Transmission oil
temperature
exceeds

60°C

during adaptation
process.

- Allow the transmission to cool down (Engine off).
- Restart adaptation procedure.

Instable

engine

torque or instable
engine rpm during
adaptation
process.

- Improve engine torque and engine rpm stability.

Make sure engine adaptation is completed
successfully.

- Restart adaptation procedure.

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2.1. Oil refill/check instruction (refill, service transmission,

new oil/oil change)

This procedure implies whenever the oil has been drained from the transmission
or transmission has been replaced with a new service transmission.
Service transmissions are not pre-filled and need to be filled up after installing in the
vehicle with approximately 4.35 litres of ESSO EZL799(A) or DEMITSU CVTF-EX1
or
PETRONAS Tutela Transmission CVT-PPT

After the initial fill, the correct way to check the oil level is listed below:

- Start the engine and stay at idle for at least 10 seconds (note: air circulating
through the system may be heard on initial start-up, this is a normal operating
condition).
- Shift gear lever into each position (P-R-N-D) and allow the gear to rest in each
of its position for 5 seconds before progressing to the next position.
-

Move the gear lever into ‘D’ position.

- Release the foot brake.
- Apply a little throttle to at least 60 km/h (the engine speed must not be higher
than 2500 rpm).
- Release the throttle and slightly break to a standstill (all the noises by air
circulating in the system during the first up shifting should be gone).
- To increase the oil temperature, drive carefully around for at least 5 minutes or
until the temperature of the transmission has reached approximately 60°C.
- Place the car on a flat ground.
- Apply the foot brake.
- Wait two seconds
-

Move the gear lever into ‘R’ position.

- Wait 10 seconds.
-

Move the gear lever into ‘P’ position.

- Keep the engine running idle.
- Remove the oil level plug (2)
- Make sure minimum 0,2 litres of oil flows out of the oil level tube after

removing the level plug (otherwise the initial amount of oil wasn’t sufficient).

If not, add another 0.5 litre extra and redo complete procedure.
-Wait a few minutes until the oil that comes out of the level begins to drip
- Refit the oil level plug with a new sealing ring (18-24Nm).

- Shutoff the engine.

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2.2. Oil level check

If the initial fill was done properly, the oil level will be at a correct level (“level-plug”
level)
Due to tolerances (such as: new transmissions are delivered with a residual oil volume
and initial fill tolerances

) the tolerance on the correct “level-plug”-level will be ± 0.165

liter.
In case of an oil level check proceed as follow:

- Remove the oil filling plug (3) on top of the transmission
- Fill the transmission with exactly 0.5 Litre
- Refit the oil filling plug (3) together with a new sealing ring (18-24Nm)
- To increase the oil temperature, drive carefully around for at least 5 minutes or
until the temperature of the transmission has reached approximately 60°C.
- Place the car on a flat ground.
- Apply the foot brake.
- Wait two seconds
-

Move the gear lever into ‘P’ position.

- Keep the engine running idle.
- Remove the oil level plug (2), while engine running idle
- Collect the drained oil (min 0.335 Litre and max 0.665 Litre)

-Minimum 0.31 litre

(0.5

ADDED OIL

- 0.19

tolerances

= 0.31 Litre)

oil will drain out off

the transmission. If the collected amount is less:

the initial level was too low.

Drain
plug(1)

Oil filling
plug (3)

Oil
level
Plug(2)

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(0.5

ADDED OIL

+ 0.14

tolerances

= 0.64 Litre)

oil will drain out off

the transmission. If the collected amount is more:

the initial level was too high.

Mentioned values are valid for exactly 60deg.

- Refit the oil level plug (2) with a new sealing ring (18-24Nm)
- Shutoff the engine.

2.3. Shifter cable adjustment

This procedure describes how to connect the shifter inside the car correctly with the
transmission. If this is not done according following instruction, it is possible that the
transmission is in another state (PRND) than the driver (or shifter) wants.
The dashboard will always indicates what the state is of the transmission, regardless
what the position of the shifter is. For a good cable adjustment the dashboard and
shifter will indicate the same position (PRND).

-Put the shifter in P position
-Make sure the transmission is in P position, shift lever to the complete outer
position like on the picture:

Shift lever in P position for cable adjustment

-If the shift lever is not in this position, push the shift lever instructionly to the outer
right position:

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Shift lever NOT in P position, NOT OK for cable adjustment

-The P position can be verified by checking the indication on the dashboard.
-Turn both front wheels at the same time till they are locked. Now the
transmission is locked in P position. You can still however turn the shift lever
out of P position but do not do this at this moment.
-If there is a bracket to hold the cable, connect first the cable to the bracket.
-Connect now the cable to the shift lever with screw and nut.
-When tightening the screw, do not bend the cable or the shift lever!!

The shifter inside the car is now aligned with the transmission and dashboard
will show the same position like the shifter.

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