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
(a) Turn the ignition switch to the ON position.
(b) Check the illumination of the MIL.
Result
2 CHECK WHETHER MIL TURNS OFF
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch to the ON position and turn the tester on.
(c) Select the following menu items: DIAGNOSIS / ENHANCED OBD II / DTC INFO / CURRENT CODES.
(d) Check if any DTCs have been stored. Note down any DTCs.
(e) Clear the DTCs (See page ES-39).
(f) Check if the MIL goes off.
Standard: MIL goes off.
3 CHECK HARNESS AND CONNECTOR (CHECK FOR SHORT IN WIRE HARNESS)
(a) Disconnect the E5 ECM connector.
(b) Turn the ignition switch to the ON position.
(c) Check that the MIL is not illuminated.
OK: MIL is not illuminated.
(d) Reconnect the ECM connector.
4 CHECK HARNESS AND CONNECTOR (COMBINATION METER - ECM)
(a) Disconnect the E5 ECM connector.
(b) Disconnect the C10 combination meter connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance (Check for Open)
Standard resistance (Check for Short)
(d) Reconnect the ECM connector.
(e) Reconnect the combination meter connector.
REPAIR OR REPLACE HARNESS OR CONNECTOR (COMBINATION METER - ECM)
5 CHECK THAT ENGINE STARTS
(a) Turn the ignition switch to the ON position.
(b) Start the engine.
Result
HINT: *: The intelligent tester cannot communicate with the ECM.
6 CHECK HARNESS AND CONNECTOR (COMBINATION METER - BODY GROUND)
(a) Disconnect the E5 ECM connector.
(b) Turn the ignition switch to the ON position.
(c) Measure the voltage according to the value(s) in the table below.
Standard voltage
(d) Reconnect the ECM connector.
7 CHECK HARNESS AND CONNECTOR (COMBINATION METER - ECM)
(a) Disconnect the E5 ECM connector.
(b) Disconnect the C10 combination meter connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance (Check for short)
Standard resistance (Check for Short)
(d) Reconnect the ECM connector.
(e) Reconnect the combination meter connector
REPLACE COMBINATION METER ASSEMBLY
Adjustment
HINT:
On the RH side, use the same procedures as on the LH
side.
Since a centering bolt is used as door hinge mounting
bolts on the body side and the door side, the door cannot
be adjusted with them on. Substitute a bolt with a washer
for the centering bolt.
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Correct use of the seat belts
Extend the shoulder belt so that
it comes fully over the shoulder,
but does not come into contact
with the neck or slide off the
shoulder.
Position the lap belt as low as
possible over the hips.
Adjust the position of the seatback.
Sit up straight and well
back in the seat.
...