![](../../../img/35/AC310120AB00ENG.png)
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caution |
Before connecting or
disconnecting the M.U.T.-III, turn the ignition
switch to the "LOCK"
(OFF) position.
|
(1)Connect M.U.T.-III to the 16-pin diagnosis
connector. (2)Turn the ignition switch to the "ON"
position. (3)Diagnose the CAN bus line. (4)Turn the
ignition switch to the "LOCK" (OFF) position.
Q.
Is the check result normal?
Go to Step
3
Repair the
CAN bus line (Refer to GROUP 54F, CAN bus line Diagnostic
flow ).
Then go to Step 2.
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![](../../../img/35/AC310120AB00ENG.png)
|
caution |
Before connecting or
disconnecting the M.U.T.-III, turn the ignition
switch to the "LOCK"
(OFF) position.
|
(1)Turn the ignition switch to the "ON"
position. (2)Erase the diagnosis code. (3)Turn the
ignition switch to the "LOCK" (OFF) position. (4)Turn the
ignition switch to the "ON" position. (5)Check if the
diagnosis code is set. (6)Turn the ignition switch to the
"LOCK" (OFF) position.
Q.
Is code No.C1201, C1206, C1211 and C1216 set?
Go to Step
3.
The
procedure is complete.
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![](../../../img/35/AC310120AB00ENG.png)
|
caution |
Before connecting or
disconnecting the M.U.T.-III, turn the ignition
switch to the "LOCK"
(OFF) position.
|
Use M.U.T.-III to check whether diagnosis codes
No.C1200, C1205, C1210 and C1215 have been
set simultaneously. (1)Connect M.U.T.-III to the 16-pin
diagnosis connector. (2)Turn the ignition switch to the
"ON" position. (3)Check whether diagnosis codes No.C1200,
C1205, C1210 or C1215 have been set. (4)Turn the ignition
switch to the "LOCK" (OFF) position.
Q.
Is codes No.C1200, C1205, C1210 or C1215
set?
Carry out diagnosis
relevant to diagnosis codes No.C1200, C1205, C1210 or C1215
(Refer to ).
Go to Step
4.
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For the wheel speed sensor, which
the diagnosis code indicates, check whether the sensor
or its mounting bolts are loosened.
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|
- Code No.C1201 is set: Front right wheel speed
sensor
- Code No.C1206 is set: Front left wheel speed
sensor
- Code No.C1211 is set: Rear right wheel speed
sensor
- Code No.C1216 is set: Rear left wheel speed
sensor
|
|
Q.
Is the check result normal?
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|
Reinstall
the wheel speed sensor correctly. Then go to Step
15.
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|
|
|
Check the wheel speed sensor, which
the diagnosis code indicates (Refer to ).
|
|
- Code No.C1201 is set: Front right wheel speed
sensor
- Code No.C1206 is set: Front left wheel speed
sensor
- Code No.C1211 is set: Rear right wheel speed
sensor
- Code No.C1216 is set: Rear left wheel speed
sensor
|
|
Q.
Is the check result normal?
|
|
Replace the
wheel speed sensor. Then go to Step 15.
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- Code No.C1201 is set: Check the front right wheel
bearing (Refer to GROUP
26, On-vehicle service -
Hub axial play check
).
- Code No.C1206 is set: Check the front left wheel
bearing (Refer to GROUP 26, On-vehicle
service -
Hub axial play check
).
- Code No.C1211 is set: Check the rear right wheel
bearing (Refer to GROUP 27, On-vehicle
service -
Wheel bearing axial play check
).
- Code No.C1216 is set: Check the rear left wheel
bearing (Refer to GROUP 27, On-vehicle
service -
Wheel bearing axial play check
).
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|
Q.
Is the check result normal?
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|
NO (front hub axial play is not
within the standard value) : Replace
the front hub assembly (Refer to GROUP 26, Front axle hub
assembly ).
Then go to Step 15.
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|
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|
NO (rear wheel bearing axial play
is not within the standard value) : Replace
the rear hub assembly (Refer to GROUP 27, Rear axle hub
assembly ).
Then go to Step 15.
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|
|
|
Check the vehicle speed detection
encoder, which diagnosis code indicates, for foreign
material or deformation.
|
|
- Code No.C1201 is set: Front right wheel speed
sensor
- Code No.C1206 is set: Front left wheel speed
sensor
- Code No.C1211 is set: Rear right wheel speed
sensor
- Code No.C1216 is set: Rear left wheel speed
sensor
|
|
Q.
Is the check result normal?
|
|
NO (front hub axial play is not
within the standard value) : If the
vehicle speed detection encoder is contaminated with foreign
material,
clean it. If the front hub assembly is deformed, replace it
(Refer to GROUP 26, Front axle hub
assembly ). Then go
to Step 15.
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|
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NO (rear wheel bearing axial play
is not within the standard value) : If the
vehicle speed detection encoder is contaminated with foreign
material,
clean it. If the rear axle hub assembly is deformed, replace
it (Refer to GROUP 27, Rear axle
hub assembly ). Then go
to Step 15.
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![](../../../img/35/AC312620AR00ENG.png)
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(1)Disconnect the connector A-03,
and connect special tool ABS Check Harness (MB991974) to
the wiring harness-side connector.
note |
Do not connect special tool
ABS Check Harness (MB991974) to the
ABS-ECU.
|
(2)Turn the ignition switch to the "ON"
position. (3)Measure the voltage between the relevant
signal and earth terminals in the wheel
speed sensor circuit and body earth. OK: Less
than 1V
- Code No.C1201 is set: Between signal terminal 5 and
body earth, and between
earth terminal 6 and body earth
- Code No.C1206 is set: Between signal terminal 8 and
body earth, and between earth
terminal 9 and body earth
- Code No.C1211 is set: Between signal terminal 11 and
body earth, and between earth
terminal 12 and body earth
- Code No.C1216 is set: Between signal terminal 2 and
body earth, and between earth
terminal 3 and body earth
Q.
Is the check result normal?
Go to Step
9.
NO (When the voltage between terminal 5 or 6
-
and body earth measures more
than 1 V) : Go to
Step 10.
NO (When the voltage between terminal 8 or 9
-
and body earth measures more
than 1 V) : Go to
Step 11.
NO (When the voltage between terminal 11 or
12 -
and body earth measures more
than 1 V) : Go to
Step 12.
NO (When the voltage between terminal 2 or 3
-
and body earth measures more
than 1 V) : Go to
Step 13.
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![](../../../img/35/AC312620AS00ENG.png)
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(1)Disconnect the connector A-03,
and connect special tool ABS Check Harness (MB991974) to
the wiring harness-side connector.
note |
Do not connect special tool
ABS Check Harness (MB991974) to the
ABS-ECU.
|
(2)Measure the resistance between the relevant
signal and earth terminals in the wheel
speed sensor circuit and body earth. OK: No
continuity
- Code No.C1201 is set: Between signal terminal 5 and
body earth, and between
earth terminal 6 and body earth
- Code No.C1206 is set: Between signal terminal 8 and
body earth, and between earth
terminal 9 and body earth
- Code No.C1211 is set: Between signal terminal 11 and
body earth, and between earth
terminal 12 and body earth
- Code No.C1216 is set: Between signal terminal 2 and
body earth, and between earth
terminal 3 and body earth
Q.
Is the check result normal?
YES (Continuity
exists between terminal 5 or terminal 6 and body earth)
: Go to Step 10.
YES (Continuity exists between
terminal 8 or terminal 9 and body earth) : Go to
Step 11.
YES (Continuity exists between terminal 11
or terminal 12 and body earth) : Go to
Step 12.
YES (Continuity exists between terminal 2 or
terminal 3 and body earth) : Go to
Step 13.
Go to Step
14.
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![](../../../img/35/AC312621AC00ENG.png)
![](../../../img/35/AC313532AB00ENG.png)
![](../../../img/35/AC313534AB00ENG.png)
![](../../../img/35/AC313536AB00ENG.png)
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Q.
Is the check result normal?
Open or
short circuit may be present in the front right wheel speed
sensor circuit.
Repair the wiring harness between ABS-ECU connector A-03
(terminals 5 and 6) and front right
wheel speed sensor A-02 (terminals 1 and 2). Then go to Step
15.
Repair or
replace the damaged component(s). Then go to Step
15.
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![](../../../img/35/AC312621AC00ENG.png)
![](../../../img/35/AC313533AB00ENG.png)
![](../../../img/35/AC313535AB00ENG.png)
![](../../../img/35/AC313537AB00ENG.png)
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Q.
Is the check result normal?
Open or
short circuit may be present in the front right wheel speed
sensor circuit.
Repair the wiring harness between ABS-ECU connector A-03
(terminals 8 and 9) and front left
wheel speed sensor A-05 (terminals 2 and 1). Then go to Step
15.
Repair or
replace the damaged component(s). Then go to Step
15.
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![](../../../img/35/AC312621AC00ENG.png)
![](../../../img/35/AC313538AB00ENG.png)
![](../../../img/35/AC313539AB00ENG.png)
![](../../../img/35/AC313540AB00ENG.png)
![](../../../img/35/AC313563AB00ENG.png)
![](../../../img/35/AC313564AB00ENG.png)
![](../../../img/35/AC313565AB00ENG.png)
|
Q.
Is the check result normal?
Open or
short circuit may be present in the rear right wheel speed
sensor circuit.
Repair the wiring harness between ABS-ECU connector A-03
(terminals 11 and 12) and rear right
wheel speed sensor D-06 (terminals 1 and 2). Then go to Step
15.
Repair or
replace the damaged component(s). Then go to Step
15.
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![](../../../img/35/AC312621AC00ENG.png)
![](../../../img/35/AC313538AB00ENG.png)
![](../../../img/35/AC313539AB00ENG.png)
![](../../../img/35/AC313540AB00ENG.png)
![](../../../img/35/AC313563AD00ENG.png)
![](../../../img/35/AC313564AD00ENG.png)
![](../../../img/35/AC313565AD00ENG.png)
|
Q.
Is the check result normal?
Open or
short circuit may be present in the rear left wheel speed
sensor circuit.
Repair the wiring harness between ABS-ECU connector A-03
(terminals 2 and 3) and rear left wheel
speed sensor D-14 (terminals 2 and 1). Then go to Step
15.
Repair or
replace the damaged component(s). Then go to Step
15.
|
![](../../../img/35/AC310120AB00ENG.png)
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Check again if the diagnosis code
is set. (1)Turn the ignition switch to the "ON"
position. (2)Erase the diagnosis code. (3)Turn the
ignition switch to the "LOCK" (OFF) position. (4)Turn the
ignition switch to the "ON" position. (5)Check if the
diagnosis code is set. (6)Turn the ignition switch to the
"LOCK" (OFF) position.
Q.
Is code No.C1201, C1206, C1211 or C1216 set?
Replace the
hydraulic unit (integrated with ABS-ECU). Then go to Step
15.
It can
be assumed that this malfunction is intermittent. Refer to
GROUP 00, How
to Use Troubleshooting/Inspection Service Points
-
How to Cope with Intermittent
Malfunction .
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![](../../../img/35/AC310120AB00ENG.png)
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Check again if the diagnosis code
is set. (1)Turn the ignition switch to the "ON"
position. (2)Erase the diagnosis code. (3)Turn the
ignition switch to the "LOCK" (OFF) position. (4)Turn the
ignition switch to the "ON" position. (5)Check if the
diagnosis code is set. (6)Turn the ignition switch to the
"LOCK" (OFF) position.
Q.
Is code No.C1201, C1206, C1211 or C1216 set?
Go to Step
1.
The
procedure is complete.
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