2668

Ferrari North America
Technical Information
Date:
Bulletin #:
Campaign #:
Supersedes:
Section:
June 2020
2668
2344
3
Model:
Model Year: All
Subject: Replacing CCP pressure sensors
Please note that the following procedures may be performed on the CCP unit of the DCT
gearbox of the aforementioned models. Whenever a vehicle is brought to the workshop with
one of the DTC errors indicated on pages 21-23, the individual component of the CCP may
be replaced as described, and it will no longer be necessary to replace the complete CCP.
The following table lists the part numbers of the kits to be ordered for the aforementioned
procedures ONLY once the relative diagnosis has been approved by the FNA Help Desk
via an ROL (Red On Line).
Description
CCP Pressure Sensor Kit
Warranty Part No.
CCP Pressure Sensor Kit
Customer Pay Part No.
KIT CCP 7.1 40 BAR
70003860*
70004021*
KIT CCP 7.2 60 BAR
70003861
70004022
- IMPORTANT * The kits 70003860/70004021 contain two 40 Bar pressure sensors. BOTH pressure sensors
must always be replaced, even if only one of the two 40 Bar sensors (811-812) is faulty.
The part numbers of the kits required for the procedures concerning the aforementioned
components are indicated in the following table.
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Procedure
Kit Part No. necessary
1. Replacing clutch pressure sensor C1, “811”
70003860/70004021
2. Replacing clutch pressure sensor C2, “812”
70003860/70004021
3. Replacing system pressure sensor, “880”
70003861/70004022
Protocol for Managing DCT Gearbox Repairs
-
ROL approval is required prior to any pressure sensor replacement procedure.
-
The Dealer must complete the “DCT Gearbox Pre-Diagnosis Form” from TI 2622
and attach it to a new ROL with complete first level diagnosis..
- IMPORTANT Before proceeding with the repair procedures, you are required to complete the “DCT
Gearbox Pre-Diagnosis Form” from TI 2622 and attach it to a new ROL.
- IMPORTANT The S.T. Schedule for the models listed includes a specific table indicating the
corresponding operation codes for the procedures performed, which are necessary to
request reimbursement under warranty.
Replaced parts must be kept for at least 60 days, so that they may be returned if requested
or authorized for scrapping by SAT.
The following procedures need to be performed to remedy a fault identified on the
respective sensor (see error list on pages 21-23):
 Replacing “811” clutch pressure sensor C1 (Fig. 1)
 Replacing “812” clutch pressure sensor C2 (Fig. 1)
 Replacing “880” system pressure sensor (Fig. 2)
2
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In addition to the tools and equipment already specified for Level 1 and Level 2 procedures,
the following tools and equipment are necessary to perform these procedures:
•
CCP carrier plate Part No. 95978837 (AV 8837);
•
19 mm socket bit Part No. 95978836 (AV 8836);
- IMPORTANT These tools have been direct shipped Authorized Ferrari Dealers. If you do not have these tools
in your possession, they can be ordered from the FNA Spare Parts Department.
Procedure
- IMPORTANT The utmost cleanliness must be maintained during the following operations; always wear clean
gloves, replacing them as needed, and use absorbent lint-free cloth and heptane to clean and
degrease components.
- IMPORTANT When carrying out the following replacement procedures, the screws fastening the components
(gearbox case and CCP) and the gaskets removed during the procedure must ALWAYS BE
REPLACED upon reassembly.
- IMPORTANT Check the expiration date of all products used in the following procedures before use.
NEVER use EXPIRED products.
3
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DTC:
P0841
P0842
P0843
P1902
P1903
P1904
DTC:
P0846 – P0847
P0848 – P1905
P1906 – P1907
812
811
Fig. 1
4
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Fig. 2
DTC:
P0933
P0934
P0935
880
The relative pressure sensors are illustrated in detail below:
 811 - Clutch pressure sensor C1 –
Fig. 3.
811
Fig. 3
5
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 812 - Clutch pressure sensor C2 –
Fig. 4.
812
 880 - System pressure sensor – Fig. 5.
Fig. 4
880
Fig. 5
6
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Replacing pressure sensors
 Remove the CCP (as indicated in TI 2620).
- IMPORTANT Before mounting the CCP to the relative carrier, the clutch basket must be fastened to the
CCP to avoid damaging the seals. You can zip tie the clutch basket to the oil pump
sprocket or fasten the clutch basket onto the CCP with a strap like shown below
7
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The following procedure is for the replacing pressure sensor 880. The procedure for
replacing pressure sensors 811 and 812 is the same, with the exception of the
specific steps indicated.
8
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 Fit the additional lower plate (1) and the
additional right hand lateral plate (2) on
tool AM 107314, fastening with the
indicated screws that are included with
the tool – Fig. 6.
2
AM 107314
1
 Fit the CCP carrier plate AV 8837 on tool
AM 107314, fastening with the indicated
screws and nuts that are included with the
tool – Fig. 7.
AV 8837
AM 107314
 Mount the CCP (3) on the relative carrier
plate AV 8837, fastening with the
indicated screws and nuts that are
included with the tool – Fig. 8.
Fig. 6
Fig. 7
3
AV 8837
Fig. 8
9
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For pressure sensor C1 “811” ONLY
 Remove the pickup (4), undoing the indicated
screws – Fig. 9.
4
Fig. 9
5
For pressure sensor C1 “811” ONLY
 Undo the indicated screws on the wiring harness
fastener bracket (5) to allow access to the
pressure sensor “811” – Fig. 10.
Fig. 10
 Release the retainer clip (1) of the connector by pressing on the top of the connector as
shown – Fig. 11 - 12.
1
Fig. 11
Fig. 12
10
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 Detach the connector from the
sensor while keeping the retainer clip
pressed (1) – Fig. 13.
1
Fig. 13
 Fit the 19 mm socket bit AV 8836 onto
the hexagonal profile (3) of the pressure
sensor – Fig. 14.
Fig. 14
AV 8836
3
11
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 Use the socket AV 8836 to unscrew
the pressure sensor – Fig. 15.
Note: Keep dirt and dust out of the
sensor seat and off the CCP in
general.
Fig. 15
AV 8836
 Handling very carefully, screw the
new sensor into the seat – Fig. 15.
 Tighten the new pressure sensor to a
torque of 9 Nm – Fig. 15.
 Ensure that the connector is turned the
correct way (1), matching the notches on
the connector and the sensor – Fig. 16.
 Press the connector (1) into its seat on
the pressure sensor – Fig. 16.
1
Fig. 16
12
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 The connector is only installed correctly (OK) if the retainer clip is fastened completely
onto the sensor as shown in Fig. 17.
Note: Fig. 18 shows an example of an INCORRECTLY installed connector (NOT
OK), with the connector fitted into the seat but with the retainer clip not
fastened correctly.
OK
NOT OK
Fig. 17
Fig. 18
- IMPORTANT Make sure that the retainer clip of the connector is fastened correctly onto the sensor.
 Before reassembling the transmission, check that the newly installed sensor functions
correctly, following the respective procedure described below for the specific pressure
sensor installed.
13
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The following equipment and materials are necessary for this procedure:

Voltmeter (use the lowest measurement range possible for greater precision);

Stabilized power supply (with output voltage set to 5±0.1 V);

Wires for connecting to CCP sensor complete with probe as shown in Fig. 19.
- IMPORTANT The wires must be fitted with the terminals shown in Fig. 19 - 20 to prevent the risk of short
circuit.
Fig. 19
Fig. 20
14
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Checking clutch pressure sensor C1 (811)
 Apply a voltage of 5±0.1 V to pin
10 (red), after connecting to pin
9 (red) (POWER) – Fig. 21.
Fig. 21
 Connect the negative wire of the
voltmeter to pin 8 (black)
(GND) – Fig. 21.
 Connect the positive wire of the
voltmeter to pin 22 (blue)
(SIGNAL), and read the value –
Fig. 21.
 For the sensor to function
correctly, the output voltage
measured must be between 0.44
and 0.56 V.
CCP
connector
PIN number
Signal name
TCU
PIN
Signal description
Connection
8
GND_LOC_3
29
Fixed Ground for sensor
Ground loop
GND
9
VREF1
58
Sensor supply for ps_K2(812),
+5 V
ps_sys (880)
(connected with pin 10)
10
VREF2
57
Sensor supply for ps_K1(811)
+5 V
(connected with pin 9)
22
CLUTCH1_PRESS
8
Clutch 1 Pressure sensor
(ps_K1 / 811)
Voltmeter
15
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Checking clutch pressure sensor C2 (812)
 Apply a voltage of 5±0.1 V to pin
9 (red), after connecting to pin
10 (red) (POWER) – Fig. 22.
Fig. 22
 Connect the negative wire of the
voltmeter to pin 8 (black) (GND)
– Fig. 22.
 Connect the positive wire of the
voltmeter to pin 12 (yellow)
(SIGNAL), and read the value –
Fig. 22.
 For the sensor to function
correctly, the output voltage
measured must be between 0.44
and 0.56 V.
CCP
connector
PIN number
Signal name
TCU
PIN
Signal description
Connection
8
GND_LOC_3
29
Fixed Ground for sensor
Ground loop
GND
9
VREF1
58
10
VREF2
57
Sensor supply for
ps_K1(811)
+5 V
(connected with pin 9)
12
CLUTCH2_PRESS
6
Clutch 2 Pressure sensor
(ps_K2 / 812)
Voltmeter
Sensor supply for ps_K2(812),
+5 V
ps_sys(880)
(connected with pin 10)
16
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Checking system pressure sensor (880)
 Apply a voltage of 5±0.1 V to pin 9 (red),
after connecting to pin 10 (red)
(POWER) – Fig. 23.
Fig. 23
 Connect the negative wire of the
voltmeter to pin 8 (black) (GND) – Fig.
23.
 Connect the positive wire of the
voltmeter to pin 21 (green) (SIGNAL),
and read the value – Fig. 23.
 For the sensor to function correctly, the
output voltage measured must be
between 0.44 and 0.56 V.
CCP
connector
PIN number
8
Signal name
TCU
PIN
Signal description
Connection
GND_LOC_3
29
Fixed Ground for sensor
Ground loop
GND
+5 V
(connected with
pin 10)
9
VREF1
58
Sensor supply for ps_K2(812),
ps_sys(880)
10
VREF2
57
Sensor supply for ps_K1(811)
+5 V
(connected with pin 9)
21
SYSTEM PRESS
23
System Pressure sensor
(ps_sys / 880)
Voltmeter
17
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For pressure sensor C1 “811” ONLY
 Fasten the wiring harness bracket (5),
tightening the two screws indicated to a
torque of 6 Nm class B – Fig. 24.
5
Fig. 24
For pressure sensor C1 “811” ONLY
 Fit and fasten the pickup (4), tightening
the indicated screws to a torque of 6 Nm
class B – Fig. 25.
Note:Ensure that the O-ring is fitted
correctly on the mating side of the
pickup.
4
Fig. 25
18
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 While supporting the CCP (3), undo the
screws and nuts indicated then remove the
CCP from the plate AV 8837 – Fig. 26.
3
AV 8837
Fig. 26
 Remove the CCP carrier plate AV 8837
from tool AM 107314, undoing the
respective screws and nuts indicated – Fig.
27.
AV 8837
AV 107314
 Remove the lower additional plate (1) and
the right hand lateral additional plate (2)
from tool AM 107314, undoing the
indicated fastener screws – Fig. 28.
Fig. 27
2
AM 107314
1
Fig. 28
19
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 Refit the CCP onto the gearbox (as indicated in Technical Information 2620).
 Perform the Self-acquisition procedure as described as follows.
Self-acquisition procedure
After replacing the sensor(s), reinstalling the gearbox in the vehicle and filling all oil circuits
correctly, the following self-acquisition procedure must be performed to allow the system to
reacquire all operating parameters necessary.
1. Connect the DEIS diagnostic tester to the vehicle.
2. Start the engine and run until the gearbox gear oil reaches operating temperature (as
described in the Workshop Manual);
3. Check the gearbox gear oil level and the clutch hydraulic system oil level (as described in
the Workshop Manual).
- IMPORTANT If any fault warning indicators illuminate or any errors are generated during the aforementioned
procedures, stop the procedure and diagnose the cause of the error.
4. Perform the cycle “40 NCR Valve cleaning test” with the DEIS tester.
5. Test drive the vehicle normally for 30 minutes, checking if any fault warning indicators
illuminate or any gearbox malfunctions are noted during the test drive.
6. Upon returning to the service centre, check that:
- no fault warning indicators are lit;
-
there are no signs of gearbox malfunction such as a slipping clutch, excessively
harsh gear engagement or noise from the gearbox;
-
there are no errors indicated on the DEIS diagnostic tester;
-
there are no leaks.
20
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- IMPORTANT -
If any error codes relative to internal components of the gearbox are generated, diagnose
the cause of the fault.
Note:
All DEIS calibration cycles must be performed with the vehicle on a flat surface with
the longitudinal accelerometer calibrated correctly (with DEIS cycle “20 NCR
Accelerometer self-acquisition”), and waiting at least 30 seconds between steps.
Thank you for your co-operation.
With reference to Technical Information 2149, the DTCs relative to the CCP pressure
sensors are indicated as follows
DTC read
on NCR
Description of
DTC
Fault
P0841
ODD clutch (1)
pressure sensor
signal, invalid
signal
Electric fault in ODD
Pressure sensor 811*
clutch pressure sensor.
P0842
ODD clutch (1)
clutch pressure
sensor, too low
Electric fault in ODD
Pressure sensor 811*
clutch pressure sensor.
P0843
ODD clutch (1)
clutch pressure
sensor, too high
Electric fault in ODD
Pressure sensor 811*
clutch pressure sensor.
P0846
EVEN clutch (2)
pressure sensor
signal, invalid
signal
Electric fault in EVEN
Pressure sensor 812*
clutch pressure sensor.
Component involved
21
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P0847
EVEN clutch (2)
clutch pressure
sensor, too low
Electric fault in EVEN
Pressure sensor 812*
clutch pressure sensor.
P0848
EVEN clutch (2)
clutch pressure
sensor, too high
Electric fault in EVEN
Pressure sensor 812*
clutch pressure sensor.
P0933
Hydraulic pressure
sensor, invalid
signal
Electric fault in
hydraulic pressure
sensor.
Pressure sensor 880
P0934
Hydraulic pressure
sensor, too low
Electric fault in
hydraulic pressure
sensor.
Pressure sensor 880
P0935
Hydraulic pressure
sensor, too high
Electric fault in
hydraulic pressure
sensor.
Pressure sensor 880
P1902
APP_CLUTCH_
PRESSURE_ODD,
too high (odd
shaft pressure
command signal
too high)
ODD clutch (1)
pressure sensor or
ODD clutch solenoid
valve malfunctioning.
P1903
APP_CLUTCH_
PRESSURE_ODD,
too low (odd shaft
pressure command
signal too low)
ODD clutch (1)
pressure sensor or
ODD clutch solenoid
valve malfunctioning.
Pressure sensor 811*
P1904
APP_CLUTCH_
PRESSURE_ODD,
invalid signal (odd
shaft pressure
command signal
not valid)
ODD clutch (1)
pressure sensor or
ODD clutch solenoid
valve malfunctioning.
Pressure sensor 811*
Pressure sensor 811*
22
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P1905
APP_CLUTCH_
PRESSURE_EVEN,
too high (even
shaft pressure
command signal
too high)
EVEN clutch (2)
pressure sensor or
EVEN clutch solenoid
valve malfunctioning.
Pressure sensor 812*
P1906
APP_CLUTCH_
PRESSURE_EVEN,
too low (even shaft
pressure command
signal too low)
EVEN clutch (2)
pressure sensor or
EVEN clutch solenoid
valve malfunctioning.
Pressure sensor 812*
P1907
APP_CLUTCH_
PRESSURE_EVEN,
invalid signal (even
shaft pressure
command signal
not valid)
EVEN clutch (2)
pressure sensor or
EVEN clutch solenoid
valve malfunctioning.
Pressure sensor 812*
23
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