INDICATOR UNIT INSPECTION
2016 – MX-5 – Body and Accessories
INDICATOR UNIT INSPECTION
Terminal Voltage Inspection
1. Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.)
2. Remove the following parts:
a. Selector lever knob (AT) (See AUTOMATIC TRANSMISSION SHIFT MECHANISM REMOVAL/INSTALLATION.)
b. Shift lever knob (MT)
c. Shift panel component (See SHIFT PANEL REMOVAL/INSTALLATION.)
d. Upper panel (See UPPER PANEL REMOVAL/INSTALLATION.)
e. Parking brake lever boot panel (See PARKING BRAKE LEVER BOOT PANEL REMOVAL/INSTALLATION.)
f. Rear console (See REAR CONSOLE REMOVAL/INSTALLATION.)
g. Front console panel (See FRONT CONSOLE PANEL REMOVAL/INSTALLATION.)
3. Remove the indicator unit with the connector still connected. (See INDICATOR UNIT REMOVAL/INSTALLATION.)
4. Connect the negative battery cable. (See NEGATIVE BATTERY CABLE 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)
—: Not applicable
|
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+ |
|
|
|
Ignition switch off or ACC |
1.0 or less |
|||||
|
B |
Power supply |
|
Under any condition |
B+ |
|
|
|
C |
— |
— |
— |
— |
— |
|
|
D*1 |
Seat warmer switch signal |
Seat warmer control unit |
Because this terminal is for communication, determination using terminal voltage inspection is not possible. |
|||
|
E*2 |
Passenger air bag deactivation (PAD) ON indicator |
Instrument cluster |
Ignition switched ON (engine off) |
Turn PAD switch on (PAD ON indicator light turns off) and light switch at OFF position |
1.0 or less |
|
|
Turn PAD switch on (PAD ON indicator light turns off) and light switch at TNS (Parking Lights) position |
Approx. 11 |
|||||
|
Turn PAD switch off (PAD ON indicator light turns on) |
Approx. 4 |
|||||
|
F |
Ground |
Body ground |
Under any condition |
1.0 or less |
|
|
|
G |
Instrument cluster signal |
Instrument cluster |
Because this terminal is for communication, determination using terminal voltage inspection is not possible. |
|||
|
H |
— |
— |
— |
— |
— |
|
|
I |
— |
— |
— |
— |
— |
|
|
J*2 |
Passenger air bag deactivation (PAD) OFF indicator |
Instrument cluster |
Ignition switched ON (engine off) |
Turn PAD switch on, approx. 60 s (during PAD OFF indicator illumination) |
Approx. 11 |
|
|
Turn PAD switch off (PAD OFF indicator light turns off) and light switch at OFF position |
Approx. 4 |
|||||
|
Turn PAD switch off (PAD OFF indicator light turns off) and light switch at TNS (Parking Lights) position |
1.0 or less |
|||||
- *1
- With seat warmer
- *2
- 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.
a. Select “DataLogger”.
b. Select “Modules”.
c. 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.)
When not using M-MDS
1. Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.)
2. Remove the following parts:
a. Selector lever knob (AT) (See AUTOMATIC TRANSMISSION SHIFT MECHANISM REMOVAL/INSTALLATION.)
b. Shift lever knob (MT)
c. Shift panel component (See SHIFT PANEL REMOVAL/INSTALLATION.)
d. Upper panel (See UPPER PANEL REMOVAL/INSTALLATION.)
e. Parking brake lever boot panel (See PARKING BRAKE LEVER BOOT PANEL REMOVAL/INSTALLATION.)
f. Rear console (See REAR CONSOLE REMOVAL/INSTALLATION.)
g. Front console panel (See FRONT CONSOLE PANEL REMOVAL/INSTALLATION.)
3. Remove the indicator unit with the connector still connected. (See INDICATOR UNIT REMOVAL/INSTALLATION.)
4. Connect the negative battery cable. (See NEGATIVE BATTERY CABLE 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.
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 warning/indicator lights are displayed as shown in the figure.
-
If the warning/indicator lights are not as shown in the figure, replace the indicator unit. (See INDICATOR UNIT REMOVAL/INSTALLATION.)