INDICATOR UNIT INSPECTION

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Terminal Voltage Inspection

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

2.  Remove the following parts:

(1)  Console side panel (See CONSOLE SIDE PANEL REMOVAL/INSTALLATION.)
(2)  Switch panel (See SWITCH PANEL REMOVAL/INSTALLATION.)
(3)  Cup holder (See CUP HOLDER REMOVAL/INSTALLATION.)
(4)  Shift lever knob (MTX) (See SHIFT LEVER REMOVAL/INSTALLATION [C66M-R, C66MX-R].) (See SHIFT LEVER REMOVAL/INSTALLATION [D66M-R, D66MX-R].)
(5)  Selector lever knob (ATX) (See SELECTOR LEVER COMPONENT REMOVAL/INSTALLATION.)
(6)  Shift panel (See SHIFT PANEL REMOVAL/INSTALLATION.)
(7)  Front console box (See FRONT CONSOLE BOX REMOVAL/INSTALLATION.)
(8)  Side wall (See SIDE WALL REMOVAL/INSTALLATION.)
(9)  Rear console (See REAR CONSOLE REMOVAL/INSTALLATION.)
(10)  Driver-side front scuff plate (See FRONT SCUFF PLATE REMOVAL/INSTALLATION.)
(11)  Driver-side front side trim (See FRONT SIDE TRIM REMOVAL/INSTALLATION.)
(12)  Lower decoration panel (See DECORATION PANEL REMOVAL/INSTALLATION.)
(13)  Bonnet release lever (See BONNET RELEASE LEVER AND RELEASE CABLE REMOVAL/INSTALLATION.)
(14)  Fuel-filler lid opener lever (See FUEL-FILLER LID OPENER AND LEVER REMOVAL/INSTALLATION.)
(15)  Driver-side lower panel (See LOWER PANEL REMOVAL/INSTALLATION.)
(16)  Center lower panel (See CENTER 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
•  ROOM 15 A fuse
Under any condition
B+
•  ROOM 15 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*5
Passenger air bag ON indicator signal
Instrument cluster
Occupant (adult) is detected.
B+
•  Instrument cluster
•  Related wiring harness
No occupant (child is seated on child-restraint seat or unoccupied) is detected.
1.0 or less
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
Steering warmer indicator
Steering warmer control unit
Ignition switched ON (engine off)
Steering warmer is not operating
B+
•  Steering warmer control unit
•  Related wiring harness
Steering warmer is operating
1.0 or less
I*4
Steering warmer switch signal
Steering warmer control unit
Ignition switched ON (engine off)
Steering warmer switch pressed
B+
•  Steering warmer control unit
•  Related wiring harness
Steering warmer switch released
1.0 or less
J*5
Passenger air bag OFF indicator signal
Instrument cluster
No occupant (child is seated on child-restraint seat or unoccupied) is detected.
B+
•  Instrument cluster
•  Related wiring harness
Occupant (adult) is detected.
1.0 or less

*1  :With i-stop system
*2  :Without i-stop system
*3  :With seat warmer
*4  :With steering warmer
*5  :With passenger air bag deactivation (PAD) system


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.)
ac5wzw00010266


When not using M-MDS

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

2.  Remove the following parts:

(1)  Console side panel (See CONSOLE SIDE PANEL REMOVAL/INSTALLATION.)
(2)  Switch panel (See SWITCH PANEL REMOVAL/INSTALLATION.)
(3)  Cup holder (See CUP HOLDER REMOVAL/INSTALLATION.)
(4)  Shift lever knob (MTX) (See SHIFT LEVER REMOVAL/INSTALLATION [C66M-R, C66MX-R].) (See SHIFT LEVER REMOVAL/INSTALLATION [D66M-R, D66MX-R].)
(5)  Selector lever knob (ATX) (See SELECTOR LEVER COMPONENT REMOVAL/INSTALLATION.)
(6)  Shift panel (See SHIFT PANEL REMOVAL/INSTALLATION.)
(7)  Front console box (See FRONT CONSOLE BOX REMOVAL/INSTALLATION.)
(8)  Side wall (See SIDE WALL REMOVAL/INSTALLATION.)
(9)  Rear console (See REAR CONSOLE REMOVAL/INSTALLATION.)
(10)  Driver-side front scuff plate (See FRONT SCUFF PLATE REMOVAL/INSTALLATION.)
(11)  Driver-side front side trim (See FRONT SIDE TRIM REMOVAL/INSTALLATION.)
(12)  Lower decoration panel (See DECORATION PANEL REMOVAL/INSTALLATION.)
(13)  Bonnet release lever (See BONNET RELEASE LEVER AND RELEASE CABLE REMOVAL/INSTALLATION.)
(14)  Fuel-filler lid opener lever (See FUEL-FILLER LID OPENER AND LEVER REMOVAL/INSTALLATION.)
(15)  Driver-side lower panel (See LOWER PANEL REMOVAL/INSTALLATION.)
(16)  Center lower panel (See CENTER 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.

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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.

ac5wzw00010266

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