SUBJECT:

REMOTE CLIMATE CONTROL WILL NOT WORK
PROPERLY DURING COLD TEMPERATURES

No:

TSB-24-55-001

DATE:

May 2024

MODEL:

Outlander Plug-in
Hybrid

CIRCULATE TO:

[ ] GENERAL MANAGER

[ X ] PARTS MANAGER

[ X ] TECHNICIAN

[ X ] SERVICE ADVISOR

[ X ] SERVICE MANAGER

[ X ] WARRANTY PROCESSOR

[ X ] SALES MANAGER

PURPOSE

During cold temperatures, the heater will not properly work when using Mitsubishi Connect APP
(Remote Climate Control). More specifically, the heat pump system has decreased
performance and the compressor is unable to function properly during temperatures of 5o F or
lower. Additionally, because the engine will not run while using the Remote Climate Control
function, the heating system does not have the necessary heat source.
On a customer complaint basis, please:
• Perform the programming listed in this bulletin according to the flow chart and procedures
• Modify the configuration system setting to allow the engine to run while using Mitsubishi
Connect APP
• Reference TIN-21-00-008 and the service manual for programming information when
replacing an ECU.
IMPORTANT:
• If a customer complaint is that the A/C system turns off unintentionally and does not
automatically turn back on, or the A/C setting value changes, please perform:
TSB-22-55-002REV3 if it has not already been done
• If after applying TSB-22-55-002REV3, the customer complaint is that the Remote Climate
Control function does not function properly during temperature of 5o or lower, proceed with
performing this bulletin
• It is NOT necessary to check and erase DTCs after each individual programming function Please DO check and erase DTCs after the last programming has completed

AFFECTED VEHICLES

2023-2024 Outlander Plug-in Hybrid

REPAIR PROCEDURE
Please perform the following 3 items on a customer complaint basis:
1. Applicable Case Procedure: replacement, programming and configuration modification.
2. Insert attached Notification of Owner’s manual (Smartphone connection) change
instruction sheet into the owner's manual.
3. Explain to the customer how the heating system will be modificed, how to use the
application and ask customers to update the Mitsubishi Connect APP to the latest version
(assisting the customer if necessary).
Copyright 2024, Mitsubishi Motors North America, Inc.
The information contained in this bulletin is subject to change. For the latest version of this document, go to the
Mitsubishi Dealer Link, MEDIC, or the Mitsubishi Service Information website (www.mitsubishitechinfo.com).

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CASE TABLE
ECU
A/C AMP (HVAC)
POWER DRIVE
UNIT (PDU)
REMCU (R-MCU)
PHEV A/C AMP
(HVAC2)
ECM (ENGINE)

Operation.
Part replacement

①

②

➂

Case
④
➄

⑥

➆

✓

Reprogramming

✓

Reprogramming

✓

✓

✓

Reprogramming

✓

✓

✓

✓

Reprogramming

✓

✓

✓

✓

✓

Part replacement
＋Reprogramming

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

PHEV-ECU (PHEV)

Reprogramming
Chage configuration
setting on special
BCM
function
✓= Applicable case(s)

⑧

✓

NOTE: Please refer to the flowchart and flowchart steps for additional details for cases.

Caution during programming:
 Turn off all electrical devices to minimize the vehicle's electrical load. Also use an
external power source to ensure that the vehicle battery maintains the specified voltage
during programming.
The low voltage of the auxiliary battery may cause the incompletion of programming
and once it happens, ECU must be replaced to brand new one.
 Write down all the customer’s electrical device settings such as A/C and radio before
programming and restore them after programming.
 Connect the MUT3-SE to an AC power source to prevent internal battery discharge.
 Before using, make sure the USB cable and MUT3-SE main harness are not damaged.
 Do not perform maintenance work in the engine room during programming.
The cooling fan may operate while programming.
 Check the All DTC after programming and erase them if any.

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CASE FLOW CHART
REMOTE CLIMATE
CONTROL WILL NOT
WORK DURING COLD
TEMPERATURES

CHECK
A/C AMP
(HVAC)
PART
NUMBER

CURRENT SOFTWARE:
27760W027P
27760W028P
27760W029P

CHECK
POWER
DRIVE
UNIT
(PDU) PART
NUMBER

IF A/C AMP (HVAC) PART NUMBER IS
ONE OF THE FOLLOWING:
27760W006P
27760W007P
27760W008P

GO TO
CASE 1

IF A/C AMP (HVAC) PART NUMBER IS
ONE OF THE FOLLOWING:
27760W018P
27760W019P
27760W020P

GO TO
CASE 2

IF POWER DRIVE UNIT (PDU) PART
NUMBER IS ONE OF THE FOLLOWING:
291A0W000P
291D0W004P

GO TO
CASE 3

IF REMCU (R-MCU) PART NUMBER IS
ONE OF THE FOLLOWING:
290G0W000P
290J1W002P

GO TO
CASE 4

CURRENT SOFTWARE:
291D0W005P

CHECK
REMCU
(R-MCU)
PART
NUMBER

CURRENT SOFTWARE:
290J1W006P
290J1W003P

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CHECK
PHEV A/C
AMP
(HVAC2)
PART
NUMBER

IF PHEV A/C AMP (HVAC2) PART
NUMBER IS ONE OF THE FOLLOWING:
27531W002P
27531W011P
27531W012P

GO TO
CASE 5

CURRENT SOFTWARE:
27531W016P

CHECK
ECM
(ENGINE)
PART
NUMBER

CURRENT SOFTWARE:
23761W139P
23761W140P

IF ECM (ENGINE)PART NUMBER IS
ONE OF THE FOLLOWING:
23761W025P
23761W068P
23761W069P
23761W111P
23761W112P
23761W113P

GO TO
CASE 6

IF PHEV-ECU (PHEV) PART NUMBER IS
ONE OF THE FOLLOWING:
237P0WW01P
237P8W009P
237P8W902P
237P8W906P
237P8W013P
237P8W021P
237P8W034P
237P0W000P
237P8W010P
237P8W903P
237P8W907P
237P8W014P
237P8W022P
237P8W035P

CHECK
PHEV-ECU
(PHEV)
PART
NUMBER

CURRENT
SOFTWARE:
237P8W909P
237P8W040P
237P8W910P
237P8W041P

GO TO
CASE 7

GO TO
CASE 8

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CASE FLOW CHART STEPS
CASE 1:
Please replace the A/C AMP and ECM with countermeasure ones by referring to the service
manual and the Parts Information section of this bulletin.
After replacing the ECUs with countermeasure ones, refer to the service manual and perform
the operation below for A/C AMP and ECM.
■A/C AMP
A/C AMP Configuration update, and perform “motor zero point reset” though
self-diagnosis using MUT3-SE.
■ECM
Refer to the Parts Information section of this bulletin, ECM programming, register VIN,
and Throttle Valve Control servo learning.

Open tailgate and engine hood.
(Do not close these until finished programming.)

Press the power switch once without depressing brake pedal to place vehicle into ACC mode.
After that press the power switch for more than 5 seconds to shut vehicle down.

Press the power switch once without depressing brake pedal to place vehicle into ACC mode.
(Do not turn off until programming has finished.)

Program each ECU referring to the Parts Information section of this bulletin (REMCU/RMCU, POWER DRIVE UNIT/PDU, PHEV-ECU/PHEV, PHEV A/C AMP/HVAC2).

Modify the configuration setting of BCM by special function.

Clear All DTCs.

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CASE 2:
Please replace the ECM with a countermeasure one by referring to the service manual and
Parts Information section of this bulletin.
After replacing the ECU with a countermeasure one, refer to service manual and perform the
operation below to the ECM.
■ECM
Refer to the Parts Information section of this bulletin, ECM programming,
register VIN, and Throttle Valve Control servo learning.

Open tailgate and engine hood.
(Do not close these until finished programming.)

Press the power switch once without depressing brake pedal to place vehicle into ACC mode.
After that press the power switch for more than 5 seconds to shut vehicle down.

Press the power switch once without depressing brake pedal to place vehicle into ACC mode.
(Do not turn off until programming has finished.)

Program each ECU referring to the Parts Information section of this bulletin (REMCU/RMCU, POWER DRIVE UNIT/PDU, PHEV-ECU/PHEV, A/C AMP/HVAC, PHEV A/C
AMP/HVAC2).

Modify the configuration setting of BCM by special function.

Clear All DTCs.

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CASE 3:
Please replace the ECM with a countermeasure one by referring to the service manual and
Parts Information section of this bulletin.
After replacing the ECU with a countermeasure one, refer to the service manual and perform
the operation below to the ECM.
■ECM (Engine)

Refer to the Parts Information section of this bulletin, ECM programming,
register VIN, and Throttle Valve Control servo learning.

Open tailgate and engine hood.
(Do not close these until finishing the programming.)

Press the power switch once without depressing brake pedal to place vehicle into ACC mode.
After that press the power switch for more than 5 seconds to shut vehicle down.

Press the power switch once without depressing brake pedal to place vehicle into ACC
mode. (Do not turn off until programming has finished.)

Program each ECU referring to the Parts Information section of this bulletin (REMCU, POWER
DRIVE UNIT, PHEV-ECU, PHEV A/C AMP).

Modify the configuration setting of BCM by special function.

Clear All DTCs.

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CASE 4:
Please replace the ECM with a countermeasure one by referring to the service manual and
Parts Information section of this bulletin.
After replacing the ECU with a countermeasure one, refer to service manual and perform the
operation below to the ECM.
■ECM
Refer to the Parts Information section of this bulletin, ECM programming, register VIN,
and Throttle Valve Control servo learning.

Open tailgate and engine hood.
(Do not close the door until finished with the programming.)

Press the power switch once without depressing brake pedal to place vehicle into ACC mode.
After that press the power switch for more than 5 seconds to shut vehicle down.

Press the power switch once without depressing brake pedal to place vehicle into ACC mode.
(Do not turn off until programming has been finished.)

Program each ECU referring to the Parts Information section of this bulletin (REMCU, PHEVECU, PHEV A/C AMP).

Modify the configuration of BCM by special function.

Clear All DTCs.

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CASE 5:
Please replace the ECM with a countermeasure one referring to the service manual and Parts
Information section of this bulletin.
After replacing the ECU with a countermeasure one, refer to the service manual and perform
the operation below to the ECM.
■ECM
Refer to Parts Information section of this bulletin, ECM programming, register VIN, and
Throttle Valve Control servo learning.

Open tailgate and engine hood.
(Do not close these until the programming is finished.)

Press the power switch once without depressing brake pedal to place vehicle into ACC mode.
After that press the power switch for more than 5 seconds to shut vehicle down.

Press the power switch once without depressing brake pedal to place vehicle into ACC mode.
(Do not turn off until programming has finished.)

Program each ECU referring to Parts Information section of this bulletin. (PHEV-ECU, PHEV
A/C AMP).

Modify the configuration setting of BCM by special function.

Clear All DTCs.

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CASE 6:
Please replace the ECM with a countermeasure one by referring to the service manual and
Parts Information section of this bulletin.
After replacing the ECU with a countermeasure one, refer to the service manual and perform
the operation below to the ECM.
■ECM
Refer to the Parts Information section of this bulletin, ECM programming, register VIN,
and Throttle Valve Control servo learning.

Open tailgate and engine hood.
(Do not close these until programming is finished.)

Press the power switch once without depressing brake pedal to place vehicle into ACC mode.