JLRTB02012NAS4

3/9/2021
TECHNICAL BULLETIN
JLRTB02012NAS4
TECHNICAL BULLETIN
09 MAR 2021
© Jaguar Land Rover North America, LLC
NOTE: The information in Technical Bulletins is intended for use by trained, professional
Technicians with the knowledge, tools, and equipment required to do the job properly and
safely. It informs these Technicians of conditions that may occur on some vehicles, or
provides information that could assist in proper vehicle service. The procedures should not
be performed by 'do-it-yourselfers'. If you are not a Retailer, do not assume that a condition
described affects your vehicle. Contact an authorized Land Rover service facility to
determine whether this bulletin applies to a specific vehicle.
INFORMATION
This reissue replaces all previous versions. Please destroy all previous versions.
This bulletin supersedes TSB JLRTB02012NAS3/2020 dated 14 AUG 2020, which should
either be destroyed or clearly marked to show it is no longer valid (e.g. with a line across the
page). Only refer to the electronic version of this Technical Bulletin in TOPIx.
Changes are highlighted in blue
SECTION:
418-02
SUBJECT/CONCERN:
'Gearbox Fault Detected' Displayed On The Instrument Panel Cluster (IPC)
AFFECTED VEHICLE RANGE:
MODEL:
I-PACE (X590)
MODEL YEAR:
2019-2020
VIN:
F60094-F80069
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ASSEMBLY PLANT:
Graz (Austria)
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MARKETS:
NORTH AMERICA
CONDITION SUMMARY:
SITUATION:
A 'Gearbox Fault Detected' warning message may be displayed on the Instrument Panel
Cluster (IPC). If the vehicle is in PARK, the customer may not be able to select DRIVE or, if
already in DRIVE, the customer may experience a ratcheting type noise followed by an
abrupt stop when the vehicle speed has reduced to 5 km/h (3 mph).
The following Diagnostic Trouble Code(s) (DTC)s may also be stored in the Powertrain
Control Module (PCM):
• P07E4-00
• P272C-13
• P303F-15
• P303F-29
• P07E6-00
• P272C-11
CAUSE:
No retention to the front Electric Drive Unit (EDU) causing strain on the wiring going to the
EDU parking lock actuator connector (C1YE113A).
ACTION:
Follow the instructions below.
PARTS:
PART NUMBER
DESCRIPTION
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PART NUMBER
DESCRIPTION
QUANTITY
T4K12931
Front compartment wiring harness
1
T4K12935
Ground cable
1
T2H3774
Front subframe to body bolts (M12)
4
T2H3162
Front subframe to body bolts (M14)
2
XR857426
Steering column lower sha lower bolt
1
J9D1171
Washer - Refrigerant hoses
2
T4A16359
Brake carrier bolt
4
T2H6322
Upper wishbone to knuckle bolt
2
XR848057
Upper wishbone to knuckle nut
2
T2H17786
Yolk to lower arm bolt
1
J9D1172
O-ring
1
J9D1169
O-ring
1
C2Z2224
Front EDU upper mounting nut
1
T4K2896
Front EDU mass damper with nut
1
T4K9603
Parking lock actuator (if required)
1
WARRANTY:
NOTES:
Repair procedures are under constant review, and therefore times are subject to
change; those quoted here must be taken as guidance only. Use TOPIx to obtain
the latest repair time.
The JLR claims submission system requires the use of causal part numbers. Labor
only claims must show the causal part number with a quantity of zero.
DESCRIPTION
JLRTB02012 Front compartment
wiring harness Renew
SRO
TIME
(HOURS)
CONDITION
CODE
CAUSAL PART
99.01.12
9.6
B4
T4K7182/T4K7184/T4K6641
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DESCRIPTION
JLRTB02012 Front compartment
wiring harness and
EDU parking lock
actuator - Renew
SRO
TIME
(HOURS)
CONDITION
CODE
CAUSAL PART
99.01.13
9.7
B4
T4K7182/T4K7184/T4K6641/T4K9603
NOTE:
Normal Warranty procedures apply.
SERVICE INSTRUCTION:
CAUTION:
DO NOT attempt to repair any damaged wiring found on the front compartment
wiring harness. If the customer concern is still present a er completing step 1 of the
service instruction, a new updated front compartment wiring harness MUST be
installed to repair the customer concern. Failure to follow this instruction may result
in rejection of the warranty claim and subsequent repeat repairs due to the
customer concern not being rectified in the first instance or the symptoms returning
in the future.
NOTES:
Some variation in the illustrations may occur, but the essential information is
always correct.
Some components are shown removed for clarity.
All vehicles
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1.
NOTE:
Make sure any other related repairs are completed before continuing with
this technical bulletin.

Refer to the TOPIx Workshop Manual section 100-00: General Information Description and Operation - Diagnostic Trouble Code Index DTC: Powertrain
Control Module (PCM) for diagnosis and testing information relating to DTCs
P07E4-00, P272C-13, P303F-15, P303F-29, P07E6-00 and P272C-11.
If the EDU parking lock actuator connector (C1YE113A) wiring is found to be
damaged as per the illustration, continue to step 2.
If no related repairs were identified and the customer concern is still present,
continue to step 2.
If any related repairs were identified and have been rectified and the
customer concern is still present, continue to step 2.
If any related repairs were identified and have been rectified but the
customer concern is not present, do not continue with this technical
bulletin.
2.
Remove the front compartment wiring harness (see TOPIx Workshop Manual
section 418-02: Wiring Harnesses - Removal and Installation - Front Compartment
Wiring Harness).
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3.

Remove and discard the front EDU ground cable.
Release the retaining clip.
Remove the 2 bolts.
4.

Disconnect the high voltage electrical connector from the wired onboard charger.
Remove the bolt.
Torque: 8 Nm
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5.
WARNING:
Be prepared to collect escaping coolant.

Release the 2 coolant hoses from the wired onboard charger.
6.

Release the ground cable and reposition away from the wired onboard charger.
Remove the bolt.
Torque: 10 Nm
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7.

Reposition the coolant hose and bracket away from the wired onboard charger.
Remove the bolt.
Torque: 12 Nm
8.

Remove the wired onboard charger.
Remove the 3 bolts.
Torque: 12 Nm
Remove the bracket.
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9.

Release the coolant hose from the front high voltage module structure.
Release the 2 retaining clips.
10.

Remove the 3 nuts from the electric drive temperature control bracket.
Torque: 9 Nm
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11.

Use suitable tool to release the electric drive temperature control bracket from the
front high voltage module structure studs.
12.

Remove and discard both front EDU nuts.
Torque
Stage 1: 60 Nm
Stage 2: 60 °
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13.
NOTE:
Make sure the Emergency Park Release (EPR) lever is in the inactive
position.

Reposition the EPR lever away from the fixing.
14.

Reposition the EPR and breather pipe through the hole in the front high voltage
module structure.
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15.

With the assistance of a second technician, raise and support the front high
voltage module structure assembly high enough to access the front EDU upper
Noise, Vibration and Harshness (NVH) cover.
16.

Move aside the coolant hoses in the directions shown in the illustration.
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17.

Use a suitable sized drill to create an 8 mm hole in the front EDU upper NVH cover,
as shown in the illustration.
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18.

Inspect the electrical connector pins of the EDU parking lock actuator for signs of
water ingress or corrosion.
If signs of water ingress or corrosion are not present on the electrical
connector pins of the EDU parking lock actuator, as shown in the image with
a GREEN '✓', the vehicle has passed the inspection.
Continue to step 24.
If signs of water ingress or corrosion are present on the electrical connector
pins of the EDU parking lock actuator, as shown in the images with a RED 'X',
the vehicle has failed the inspection.
Continue to step 19.
Vehicles that failed the inspection only
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19.

Remove the Air Conditioning (A/C) compressor NVH cover.
20.

Remove the 2 front EDU NVH cover retaining clips.
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21.

Reposition the front EDU NVH cover to gain access to the front EDU parking lock
actuator.
22.
Renew the front EDU parking lock actuator (see TOPIx Workshop Manual section
601-01: Electrical Drive Unit - Removal and Installation - Electric Drive Unit
Parking Lock Actuator).
23.
Reverse steps 19 to 21.
All vehicles
24.
Reverse steps 4 to 16.
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25.

Install the new front EDU ground cable.
Secure the ground cable with the retaining clip.
Tighten the 2 bolts.
Torque: 12 Nm
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26.
NOTE:
When installing the new front compartment wiring harness make sure the
new front EDU ground cable is routed through the loop formed by the front
EDU parking lock actuator break out harness, as shown in the illustration.

Install the new updated front compartment wiring harness (see TOPIx Workshop
Manual section 418-02: Wiring Harnesses - Removal and Installation - Front
Compartment Wiring Harness).
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27.

During the installation of the front EDU, make sure the new wiring harness clip is
installed in the NVH cover, as shown in the illustration.
28.
An Electronic Product Quality Report (EPQR) must be submitted to provide a clear
photograph of any damage found on the original front compartment wiring
harness. A clear photograph of the electrical connector pins of the front EDU
parking lock actuator, showing the signs of water ingress or corrosion, should also
be provided.
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