INDICATOR UNIT INSPECTION

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Caution
•  Vehicle specifications differ depending on the vehicle identification number (VIN).
?  Type A VIN:
JM0 TC2WLA*# 100001—299999
JM0 TC4WLA*# 100001—299999
JMZ TB5WYA*# 100001—599999
JMZ TB6WYA*# 100001—599999
JMZ TBEWYA*# 100001—599999
JMZ TBFWYA*# 100001—599999
JM7 TC2WLA*# 100001—299999
JM7 TC4WLA*# 100001—299999
JM5 TCAWY**# 100001—299999
JM6 TC2WLA*# 100001—299999
JM6 TC4WLA*# 100001—299999
?  Type B VIN:
JM0 TC2WLA*# 300001—
JM0 TC4WLA*# 300001—
JMZ TB5WYA*# 600001—
JMZ TB6WYA*# 600001—
JMZ TBEWYA*# 600001—
JMZ TBFWYA*# 600001—
JM7 TC2WLA*# 300001—
JM7 TC4WLA*# 300001—
JM5 TCAWY**# 300001—
JM6 TC2WLA*# 300001—
JM6 TC4WLA*# 300001—

Terminal Voltage Inspection

1.  Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

2.  Remove the following parts:

(1)  Selector lever knob (See AUTOMATIC TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION.)
(2)  Shift panel (See SHIFT PANEL REMOVAL/INSTALLATION.)
(3)  Console side panel (See CONSOLE SIDE PANEL REMOVAL/INSTALLATION.)
(4)  Front console (See FRONT CONSOLE REMOVAL/INSTALLATION.)
(5)  Glove compartment (See GLOVE COMPARTMENT REMOVAL/INSTALLATION.)
(6)  Dashboard under cover (See DASHBOARD UNDER COVER REMOVAL/INSTALLATION.)
(7)  Passenger-side decoration panel (See DECORATION PANEL REMOVAL/INSTALLATION.)
(8)  Front scuff plate (See FRONT SCUFF PLATE REMOVAL/INSTALLATION.)
(9)  Front side trim (See FRONT SIDE TRIM REMOVAL/INSTALLATION.)
(10)  Bonnet release lever (See BONNET RELEASE LEVER AND RELEASE CABLE REMOVAL/INSTALLATION.)
(11)  Fuel-filler lid opener lever (See FUEL-FILLER LID OPENER AND LEVER REMOVAL/INSTALLATION.)
(12)  Driver-side lower panel (See DRIVER-SIDE LOWER PANEL REMOVAL/INSTALLATION.)
(13)  Passenger-side lower panel (See PASSENGER-SIDE LOWER PANEL REMOVAL/INSTALLATION.)

3.  Remove the indicator unit with the connector still connected. (See INDICATOR UNIT REMOVAL/INSTALLATION.)

4.  Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

5.  Verify that the voltages of each of the terminals are as indicated in the terminal voltage table (reference).

•  If the voltage is not as specified in the terminal voltage table (reference), inspect the parts under Inspection item(s).
?  If the system does not work normally even though the inspection items or related wiring harnesses do not have any malfunction, replace the indicator unit. (See INDICATOR UNIT REMOVAL/INSTALLATION.)

Terminal Voltage Table (Reference)

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Terminal

Signal name

Connected to

Measurement conditions

Voltage (V)

Inspection item(s)
A
Power supply (IG1)
IG1 relay
Ignition switch ON (engine off or on)
B+
•  METER1 10A fuse
•  IG1 relay
•  Related wiring harness
Ignition switch off or ACC
1.0 or less
B
Power supply
•  INTERIOR 10 A fuse
•  ROOM 25 A fuse
Under any condition
B+
•  INTERIOR 10 A fuse
•  ROOM 25 A fuse
•  Battery
•  Related wiring harness
C
Power supply (IG1)*1
Ignition relay (IG1_STAB)
Ignition switch ON (engine off or on)
B+
•  Ignition relay (IG1_STAB)
•  Related wiring harness
Ignition switch off or ACC
1.0 or less
Power supply (IG1)*2
IG1 relay
Ignition switch ON (engine off or on)
B+
•  C/U IG1 15A fuse
•  IG1 relay
•  Related wiring harness
Ignition switch off or ACC
1.0 or less
D*3
Seat warmer switch signal
Seat warmer control unit
Because this terminal is for communication, determination using terminal voltage inspection is not possible.
E
—
—
—
—
—
F
Ground
Body ground
Under any condition
1.0 or less
•  Body ground
•  Related wiring harness
G
Instrument cluster signal
Instrument cluster
Because this terminal is for communication, determination using terminal voltage inspection is not possible.
H*4
Heated steering wheel indicator
Heated steering wheel control unit
Ignition switched ON (engine off)
Heated steering wheel is not operating
B+
•  Heated steering wheel control unit
•  Related wiring harness
Heated steering wheel is operating
1.0 or less
I*4
Heated steering wheel switch signal
Heated steering wheel control unit
Ignition switched ON (engine off)
Heated steering wheel switch pressed
B+
•  Heated steering wheel control unit
•  Related wiring harness
Heated steering wheel switch released
1.0 or less
J
—
—
—
—
—
*1   :With i-stop system
*2   :Without i-stop system
*3   :With seat warmer (type A VIN)
*4   :With heated steering wheel


LED Illumination Inspection


When using M-MDS

1.  Connect the M-MDS to the DLC-2.

2.  After the vehicle is identified, select the following items from the initialization screen of the M-MDS.

1.  Select “Data logger”
2.  Select “Module”
3.  Select “IC”

3.  Using the simulation function item LCD_SEG, verify that the warning/indicator lights are displayed as shown in the following figure.

•  If the warning/indicator lights are not displayed as shown in the figure, replace the indicator unit. (See INDICATOR UNIT REMOVAL/INSTALLATION.)
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When not using M-MDS

1.  Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

2.  Remove the following parts:

(1)  Selector lever knob (See AUTOMATIC TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION.)
(2)  Shift panel (See SHIFT PANEL REMOVAL/INSTALLATION.)
(3)  Console side panel (See CONSOLE SIDE PANEL REMOVAL/INSTALLATION.)
(4)  Front console (See FRONT CONSOLE REMOVAL/INSTALLATION.)
(5)  Glove compartment (See GLOVE COMPARTMENT REMOVAL/INSTALLATION.)
(6)  Dashboard under cover (See DASHBOARD UNDER COVER REMOVAL/INSTALLATION.)
(7)  Passenger-side decoration panel (See DECORATION PANEL REMOVAL/INSTALLATION.)
(8)  Front scuff plate (See FRONT SCUFF PLATE REMOVAL/INSTALLATION.)
(9)  Front side trim (See FRONT SIDE TRIM REMOVAL/INSTALLATION.)
(10)  Bonnet release lever (See BONNET RELEASE LEVER AND RELEASE CABLE REMOVAL/INSTALLATION.)
(11)  Fuel-filler lid opener lever (See FUEL-FILLER LID OPENER AND LEVER REMOVAL/INSTALLATION.)
(12)  Driver-side lower panel (See DRIVER-SIDE LOWER PANEL REMOVAL/INSTALLATION.)
(13)  Passenger-side lower panel (See PASSENGER-SIDE LOWER PANEL REMOVAL/INSTALLATION.)

3.  Remove the indicator unit with the connector still connected. (See INDICATOR UNIT REMOVAL/INSTALLATION.)

4.  Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

5.  Switch the ignition ON (engine off or on).

6.  Using a jumper wire, connect indicator unit terminal G and body ground for 5 s or more.

am2zzw00011535
Caution
•  If the terminals are mistakenly connected, vehicle damage or fire could occur. When connecting with the jumper wire, thoroughly verify what terminals are being connected to prevent a miss-connection.

7.  Verify that the following warning/indicator lights are turned on.

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•  If the warning/indicator lights are not as shown in the figure, replace the indicator unit. (See INDICATOR UNIT REMOVAL/INSTALLATION.)