DESCRIPTION
The MIL (Malfunction Indicator Lamp) is used to indicate vehicle malfunctions detected by the ECM.
When the ignition switch is turned to the ON position, power is supplied to the MIL circuit, and the ECM provides the circuit ground which illuminates the MIL.
The MIL operation can be checked visually. When the ignition switch is first turned to the ON position, the MIL should be illuminated and should then turn off. If the MIL remains illuminated or is not illuminated, conduct the following troubleshooting procedure using the intelligent tester.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK THAT MIL IS ILLUMINATED
Result
2 CHECK WHETHER MIL TURNS OFF
Standard: MIL goes off.
3 CHECK HARNESS AND CONNECTOR (CHECK FOR SHORT IN WIRE HARNESS)
OK: MIL is not illuminated.
4 CHECK HARNESS AND CONNECTOR (COMBINATION METER - ECM)
Standard resistance (Check for Open)
Standard resistance (Check for Short)
REPAIR OR REPLACE HARNESS OR CONNECTOR (COMBINATION METER - ECM)
5 CHECK THAT ENGINE STARTS
Result
HINT: *: The intelligent tester cannot communicate with the ECM.
6 CHECK HARNESS AND CONNECTOR (COMBINATION METER - BODY GROUND)
Standard voltage
7 CHECK HARNESS AND CONNECTOR (COMBINATION METER - ECM)
Standard resistance (Check for short)
Standard resistance (Check for Short)
REPLACE COMBINATION METER ASSEMBLY
Occupant Classification System Malfunction
DTC B1150/23 Occupant Classification System Malfunction
DESCRIPTION
The occupant classification system circuit consists of the center airbag
sensor assembly and the occupant
classification ECU.
If the center airbag sensor assembly receives signals from the occupant
classification ECU, it d ...
Vehicle Speed Signal Circuit between Stereo Component Amplifier and
Combination Meter
DESCRIPTION
This circuit is necessary for the ASL (Auto Sound Leveliser) built into the
stereo component amplifier.
Speed signals are received from the combination meter and used for the ASL.
The ASL function automatically adjusts the sound data in order to enable hearing
the clear audio ...
Folding down the third seats (power seats)
You can operate the power third seats when the shift lever is in P.
Before folding the third seats
Lower the center head
restraint to the lowest position and stow the
seat belt buckles.
Stow the center seat belt.
Folding down the third seatbacks
Press the folding/returning ...