TSB-23-35-004

SUBJECT:
No:
STEERING WHEEL SENSOR CALIBRATION SERVICE MANUAL REVISION
DATE:
TSB-23-35-004
November 2023
MODEL:
See below
CIRCULATE TO:
[ ] GENERAL MANAGER
[ X ] PARTS MANAGER
[ X ] TECHNICIAN
[ X ] SERVICE ADVISOR
[ X ] SERVICE MANAGER
[ X ] WARRANTY PROCESSOR
[ X ] SALES MANAGER
PURPOSE
This TSB details corrections to the Active Stability Control System, On Vehicle Service section
of the applicable Service Manual.
AFFECTED VEHICLES
2012-2014 i-MiEV
2016-2017 i-MiEV
AFFECTED SERVICE MANUAL
2012-2014 i-MiEV Service Manual
2016-2017* i-MiEV Service Manual
PROCEDURE
Please use the chart below to replace the applicable pages in the affected Service Manual, Group 35,
Active Stability Control System, On Vehicle Service, Steering Wheel Sensor Calibration section.
Applicable Manual
2012
i-MiEV
Service Manual
2013
i-MiEV
Service Manual
2014
i-MiEV
Service Manual
2016
i-MiEV
Service Manual
2017
i-MiEV
Service Manual
Applicable Title
Pub. No.
MSCD-018B-2012
STEERING WHEEL SENSOR
CALIBRATION
MSCD-018B-2013
MSCD-018B-2014
Attached sheet 6
STEERING WHEEL SENSOR CALIBRATION
(M355-00-920-31600-01)
MSCD-018B-2016
MSCD-018B-2016*
Content
Attached sheet 5
Attached sheet 7
STEERING WHEEL SENSOR CALIBRATION
(M355-00-920-31600-01)
*For 2017 MY vehicles, refer to 2016 i-MiEV Service Manual
Copyright 2023, 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).
11/01/2023
Page 1 of 7
(4997/MSB20EXML35501)
Attached sheet 5 (1/2)
ACTIVE STABILITY CONTROL SYSTEM (ASC)
ON-VEHICLE SERVICE
IN THE EVENT OF A DISCHARGED AUXILIARY BATTERY
35C-143
M1355006200221
and the vehicle is then driven without waiting for the
auxiliary battery to be recharged, the electric motor
unit may misfire and it may not be possible to drive
the vehicle. This is because the ASC consumes a
large amount of current when carrying out its initial
checks. If this happens, recharge the auxiliary battery fully.

WARNING
If the ASC is not operating, the vehicle will be
unstable during braking, Do not drive the
vehicle with the ASC-ECU connector disconnected or with the ASC not operating.
If the electric motor unit is started using a booster
cable when the auxiliary battery is completely flat,
STEERING WHEEL SENSOR CALIBRATION
update the neutral position stored in the
steering wheel sensor.
M1355009200316
9. In "Special function," select "Learn neutral
CAUTION
position of steering angle sensor."
After the next operation has been completed,
carry out the following two operations:
NOTE: When the neutral position of steering

angle sensor has been learned, "Neutral position
• Alignment adjustment 
learned
already: in order to relearn the neutral
• Steering wheel sensor (column switch assemposition,
press the "OK" button to initialize the
bly) replacement, removal, installation 
steering
angle
sensor neutral position." is dis1. Update the neutral position stored in the
played. If it is okay, press the "OK" button.
steering wheel sensor.
10.In "Learn neutral position of steering angle
2. Reset the calibrated value of the steering
sensor," "Initialize neutral position of steering
angle stored in ASC-ECU.
angle sensor" is selected, thus press the "OK"
CAUTION
 button.
• Before performing the calibration, check if the
NOTE: When the neutral position of steering
steering wheel sensor-related DTC is set in
angle sensor has been learned, "Initialize neutral
ASC-ECU.
position of steering angle sensor: Do you want to
• When the DTC other than C1394 is set, carry
execute? Note: The DTC will be erased." is disout the inspection according to each troubleplayed.
Then, press the "OK" button.
shooting procedure.
11."Initialize neutral position of steering angle
1. Park the vehicle on a level surface with tires and
sensor: Completed" is displayed. Then, press the
steering wheel positioned in a straight ahead
"OK" button.
direction.
12.Press the "OK" button.
2. Turn the electric motor switch to the "ON"
13."Learn neutral position of steering angle sensor:
position.
Do you want to execute? Note: Execute after the
3. Turn the electric motor switch to the "LOCK"
tires and steering wheel are aligned in a straight
(OFF) position.
ahead direction." is displayed. Then, press the
"OK" button.
CAUTION
Before connecting or disconnecting scan tool,
14."Learn neutral position of steering angle sensor:
always turn the electric motor switch to the
Completed" is displayed. Then, press the "OK"
LOCK (OFF) position.
button.
15.After turning the electric motor switch to "LOCK"
4. Check that the electric motor switch is in the
(OFF) position, turn it to the "ON" position again.
"LOCK" (OFF) position, and then set scan tool.
16.On the Menu, select "System selection."
5. Turn the electric motor switch to the "ON"
position.
17.On the "System selection," select "ABS/ASC/
ASTC" in the "System table," and then click the
6. On the Menu, select "System selection."
"OK" button.
7. In "System table" of "System selection," select
18. In the "ABS/ASC/ASTC" field, select "Special
"Steering angle sensor," and then press the "OK"
function".
button.
19.In the "Special function," select "Learn sensor
8. In "Steering angle sensor," select "Special
neutral position."
function."
.

11/01/2023
Page 2 of 7
(4997/MSB20EXML35501)
Attached sheet 5 (2/2)
ACTIVE STABILITY CONTROL SYSTEM (ASC)
35C-144
ASC OFF SWITCH
20.In "Learn sensor neutral position," select "Learn
neutral position of steering angle sensor," and
then press the "OK" button.
21."Learn neutral position of steering angle sensor:
Are you sure to execute the selected item? Note:
Check the execution conditions." is displayed.
Then, press the "OK" button.

22."Execute command: Executed" is displayed.
Then, press the "OK" button.

23.The neutral point is learned.
24.Turn the electric motor switch to the "LOCK"
(OFF) position, and remove scan tool from the
vehicle.
16.
17. 
ASC OFF SWITCH
REMOVAL AND INSTALLATION
M1357003300043
2
1
ACA02711AB
1.
Removal steps
Under cover (Refer to GROUP 52A
− Instrument Panel Assembly.)
2.
ASC OFF switch
INSPECTION
M1357004600014
ASC OFF SWITCH CONTINUITY CHECK
1. As shown in the figure, connect the circuit tester to the ASC
OFF switch as a single unit.
2. Check the continuity status when the ASC OFF switch is
pressed and when the switch is released.
Item
When the ASC When the ASC
OFF switch is OFF switch is
released (Not pressed
being
operated)
Continuity between
terminal No. 1 and
No. 2
No continuity
Continuity
exists (2 Ω or
less)
Continuity between
terminal No. 3 and
No. 4
Continuity
exists
Continuity
exists
ACA01062AB
11/01/2023
Page 3 of 7
(4997/MSB20EXML35501)
Attached sheet 6 (1/2)
ACTIVE STABILITY CONTROL SYSTEM (ASC)
ON-VEHICLE SERVICE
IN THE EVENT OF A DISCHARGED 12V STATER BATTERY
35C-145
M1355006200221
WARNING
If the ASC is not operating, the vehicle will be
unstable during braking, Do not drive the
vehicle with the ASC-ECU connector disconnected or with the ASC not operating.
If the electric motor unit is started using a booster
cable when the 12V Stater battery is completely flat,
and the vehicle is then driven without waiting for the
12V Stater battery to be recharged, the electric motor
unit may misfire and it may not be possible to drive
the vehicle. This is because the ASC consumes a
large amount of current when carrying out its initial
checks. If this happens, recharge the 12V Stater battery fully.

STEERING WHEEL SENSOR CALIBRATION
update the neutral position stored in the
steering wheel sensor.
M1355009200316
7. In "System table" of "System selection," select
CAUTION
"Steering angle sensor," and then press the "OK"
After the next operation has been completed,
button.
carry out the following two operations:

8. In "Steering angle sensor," select "Special
• Alignment adjustment 
function."
• Steering wheel sensor (column switch assembly) replacement, removal, installation 9. In "Special function," select "Learn neutral
position of steering angle sensor."
1. Update the neutral position stored in the
steering wheel sensor.
NOTE: When the neutral position of steering
angle sensor has been learned, "Neutral position
2. Reset the calibrated value of the steering
learned already: in order to relearn the neutral
angle stored in ASC-ECU.
position, press the "OK" button to initialize the
CAUTION

steering angle sensor neutral position." is dis• Before performing the calibration, check if the
played. If it is okay, press the "OK" button.
steering wheel sensor-related DTC is set in
10.In "Learn neutral position of steering angle
ASC-ECU.
sensor," "Initialize neutral position of steering
• When the DTC other than C1394 is set, carry
angle sensor" is selected, thus press the "OK"
out the inspection according to each troublebutton.
shooting procedure.
NOTE: When the neutral position of steering
1. Park the vehicle on a level surface with tires and
angle sensor has been learned, "Initialize neutral
steering wheel positioned in a straight ahead
position of steering angle sensor: Do you want to
direction.
execute? Note: The DTC will be erased." is dis2. Turn the electric motor switch to the "ON"
played. Then, press the "OK" button.
position.
11."Initialize neutral position of steering angle
3. Turn the electric motor switch to the "LOCK"
sensor: Completed" is displayed. Then, press the
(OFF) position.
"OK" button.
CAUTION
12.Press the "OK" button.
Before connecting or disconnecting scan tool,
13."Learn neutral position of steering angle sensor:
always turn the electric motor switch to the
Do you want to execute? Note: Execute after the
LOCK (OFF) position.
tires and steering wheel are aligned in a straight
ahead direction." is displayed. Then, press the
4. Check that the electric motor switch is in the
"OK" button.
"LOCK" (OFF) position, and then set scan tool.
14."Learn neutral position of steering angle sensor:
5. Turn the electric motor switch to the "ON"
Completed" is displayed. Then, press the "OK"
position.
button.
6. On the Menu, select "System selection."
.
11/01/2023
Page 4 of 7
(4997/MSB20EXML35501)
Attached sheet 6 (2/2)
35C-146
ACTIVE STABILITY CONTROL SYSTEM (ASC)
ASC OFF SWITCH
15.After turning the electric motor switch to "LOCK"
(OFF) position, turn it to the "ON" position again.
16.On the Menu, select "System selection."
17.On the "System selection," select
"ABS/ASC/ASTC" in the "System table," and then
click the "OK" button.
18. In the "ABS/ASC/ASTC" field, select "Special
function".
19.In the "Special function," select "Learn sensor
neutral position."


20.In "Learn sensor neutral position," select "Learn
neutral position of steering angle sensor," and
then press the "OK" button.
21."Learn neutral position of steering angle sensor:
Are you sure to execute the selected item? Note:
Check the execution conditions." is displayed.
Then, press the "OK" button.
22."Execute command: Executed" is displayed.
Then, press the "OK" button.

23.The neutral point is learned.
24.Turn the electric motor switch to the "LOCK"
(OFF) position, and remove scan tool from the
vehicle.
16.
17.
ASC OFF SWITCH
REMOVAL AND INSTALLATION
M1357003300043
2
1
ACA02711AB
1.
Removal steps
Under cover (Refer to GROUP 52A
- Instrument Panel Assembly.)
2.
ASC OFF switch
INSPECTION
ASC OFF SWITCH CONTINUITY CHECK
M1357004600014
1. As shown in the figure, connect the circuit tester to the ASC
OFF switch as a single unit.
2. Check the continuity status when the ASC OFF switch is
pressed and when the switch is released.
ACA01062AB
11/01/2023
Page 5 of 7
(4997/MSB20EXML35501)
Attached sheet 7 (1/2)
35C-140
ACTIVE STABILITY CONTROL SYSTEM (ASC)
ON-VEHICLE SERVICE
IN THE EVENT OF A DISCHARGED 12V STARTER BATTERY
M1355006200287
WARNING
If the ASC is not operating, the vehicle will be
unstable during braking, Do not drive the
vehicle with the ASC-ECU connector disconnected or with the ASC not operating.
If the electric motor unit is started using a booster
cable when the 12V Starter battery is completely flat,
and the vehicle is then driven without waiting for the
12V Starter battery to be recharged, the electric
motor unit may misfire and it may not be possible to
drive the vehicle. This is because the ASC consumes
a large amount of current when carrying out its initial
checks. If this happens, recharge the 12V Starter
battery fully.

STEERING WHEEL SENSOR CALIBRATION
update the neutral position stored in the
steering wheel sensor.
M1355009200316
7.
CAUTION
After the next operation has been completed,
carry out the following two operations:

8.
 Alignment adjustment 
 Steering wheel sensor (column switch assembly) replacement, removal, installation  9.
1. Update the neutral position stored in the
steering wheel sensor.
2. Reset the calibrated value of the steering
angle stored in ASC-ECU.
In "System table" of "System selection," select
"Steering angle sensor," and then press the "OK"
button.
In "Steering angle sensor," select "Special
function."
In "Special function," select "Learn neutral
position of steering angle sensor."
NOTE: When the neutral position of steering
angle sensor has been learned, "Neutral position
learned already: in order to relearn the neutral
position, press the "OK" button to initialize the
CAUTION

steering angle sensor neutral position." is dis Before performing the calibration, check if the
played. If it is okay, press the "OK" button.
steering wheel sensor-related DTC is set in
10.In "Learn neutral position of steering angle
ASC-ECU.
sensor," "Initialize neutral position of steering
 When the DTC other than C1394 is set, carry
angle sensor" is selected, thus press the "OK"
out the inspection according to each troublebutton.
shooting procedure.
NOTE: When the neutral position of steering
1. Park the vehicle on a level surface with tires and
angle sensor has been learned, "Initialize neutral
steering wheel positioned in a straight ahead
position of steering angle sensor: Do you want to
direction.
execute? Note: The DTC will be erased." is dis2. Turn the electric motor switch to the "ON"
played. Then, press the "OK" button.
position.
11."Initialize neutral position of steering angle
3. Turn the electric motor switch to the "LOCK"
sensor: Completed" is displayed. Then, press the
(OFF) position.
"OK" button.
CAUTION
12.Press the "OK" button.
Before connecting or disconnecting scan tool,
13."Learn neutral position of steering angle sensor:
always turn the electric motor switch to the
Do you want to execute? Note: Execute after the
LOCK (OFF) position.
tires and steering wheel are aligned in a straight
ahead direction." is displayed. Then, press the
4. Check that the electric motor switch is in the
"OK" button.
"LOCK" (OFF) position, and then set scan tool.
14."Learn neutral position of steering angle sensor:
5. Turn the electric motor switch to the "ON"
Completed" is displayed. Then, press the "OK"
position.
button.
6. On the Menu, select "System selection."
.
11/01/2023
Page 6 of 7
(4997/MSB20EXML35501)
Attached sheet 7 (2/2)
ACTIVE STABILITY CONTROL SYSTEM (ASC)
ASC OFF SWITCH
15.After turning the electric motor switch to "LOCK"
(OFF) position, turn it to the "ON" position again.
16.On the Menu, select "System selection."
17.On the "System selection," select "ABS/ASC/
ASTC" in the "System table," and then click the
"OK" button.
18. In the "ABS/ASC/ASTC" field, select "Special
function".
19.In the "Special function," select "Learn sensor
neutral position."


35C-141
20.In "Learn sensor neutral position," select "Learn
neutral position of steering angle sensor," and
then press the "OK" button.
21."Learn neutral position of steering angle sensor:
Are you sure to execute the selected item? Note:
Check the execution conditions." is displayed.
Then, press the "OK" button.
22."Execute command: Executed" is displayed.
Then, press the "OK" button.

23.The neutral point is learned.
24.Turn the electric motor switch to the "LOCK"
(OFF) position, and remove scan tool from the
vehicle.
16.
17.
ASC OFF SWITCH
REMOVAL AND INSTALLATION
M1357003300043
2
1
ACA02711AB
1.
2.
Removal steps
Under cover (Refer to GROUP 52A
 Instrument Panel Assembly .)
ASC OFF switch
INSPECTION
M1357004600014
ASC OFF SWITCH CONTINUITY CHECK
1. As shown in the figure, connect the circuit tester to the ASC
OFF switch as a single unit.
2. Check the continuity status when the ASC OFF switch is
pressed and when the switch is released.
ACA01062AB
11/01/2023
Page 7 of 7
(4997/MSB20EXML35501)