Page 1865 of 2000
LI–34LIGHTING – LIGHTING SYSTEM
LI
OK
REPAIR OR REPLACE HARNESS AND CONNECTOR (HEADLIGHT DIMMER SWITCH - BODY
GROUND)
Page 1866 of 2000
LIGHTING – LIGHTING SYSTEMLI–35
LI
DESCRIPTION
The main body ECU controls the daytime running light No. 2 relay (Marking: DRL NO.2).
WIRING DIAGRAM
DRL Relay Circuit
B118198E03
Page 1867 of 2000
LI–36LIGHTING – LIGHTING SYSTEM
LI
INSPECTION PROCEDURE
(a) Remove the No. 2 relay, No. 3 relay and No. 4 relay from
the engine room No. 2 relay block.
(b) Measure the resistance of the relays.
Standard resistance:
No. 2, No. 4
No. 3
NG
OK
(a) Remove the HEAD LH fuse from the engine room No. 2
relay block.
(b) Measure the resistance of the fuse.
Standard resistance:
Below 1
NG
OK
1INSPECT DAYTIME RUNNING LIGHT RELAY (Marking: DRL NO. 2, DRL NO. 3, DRL NO. 4)
B128080E04
Tester Connection Specified Condition
3 - 5 10 k
or higher
3 - 5 Below 1
(Battery voltage applied to terminals
1 and 2)
Tester Connection Specified Condition
4 - 5 Below 1
4 - 5 10 k or higher
(Battery voltage applied to terminals
1 and 2)
3 - 5 10 k
or higher
3 - 5 Below 1
(Battery voltage applied to terminals
1 and 2)
REPLACE DAYTIME RUNNING LIGHT RELAY
2INSPECT FUSE (HEAD LH)
REPLACE FUSE
Page 1868 of 2000
LIGHTING – LIGHTING SYSTEMLI–37
LI
(a) Remove the headlight bulb (high).
(b) Connect the positive (+) lead from the battery to terminal
2 and the negative (-) lead to terminal 1, then check that
the bulb illuminates.
NG
OK
(a) Remove the No. 2 daytime running light relay from the
engine room No. 2 relay block.
(b) Measure the voltage of the relay block.
Standard voltage
NG
OK
3INSPECT HEADLIGHT BULB (HIGH)
C128857E01
REPLACE HEADLIGHT BULB (HIGH)
4CHECK WIRE HARNESS (BATTERY - NO. 2 DAYTIME RUNNING LIGHT RELAY)
B118199E04
Tester Connection Specified Condition
Relay block daytime running light
No. 2 relay terminal 5 - Body ground10 to 14 V
REPAIR OR REPLACE HARNESS AND
CONNECTOR
Page 1869 of 2000

LI–38LIGHTING – LIGHTING SYSTEM
LI
(a) Remove the No. 2 daytime running light relay from the
engine room No. 2 relay block.
(b) Disconnect the A14 and A22 headlight (HIGH)
connectors.
(c) Measure the resistance of the wire harness side
connectors and relay block.
Standard resistance
NG
OK
(a) Disconnect the E16 main body ECU connector.
(b) Measure the voltage of the wire harness side connector.
Standard voltage
NG
OK
5CHECK WIRE HARNESS (NO. 2 DAYTIME RUNNING LIGHT RELAY - HEADLIGHT BULB
AND BODY GROUND)
B118200E09
Tester Connection Specified Condition
Relay block daytime running light
No. 2 relay terminal 3 - A14-2Below 1
A14-2 - Body ground 10 k or higher
A14-1 - A22-1 Below 1
A14-1 - Body ground 10 k or higher
A22-2 - Body ground Below 1
REPAIR OR REPLACE HARNESS AND
CONNECTOR
6CHECK WIRE HARNESS (MAIN BODY ECU - BATTERY)
B118235E01
Tester Connection Specified Condition
E16-3 (DIM) - Body ground 10 to 14 V
REPAIR OR REPLACE HARNESS AND
CONNECTOR
REPLACE INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU)
Page 1870 of 2000
LIGHTING – LIGHTING SYSTEMLI–39
LI
DESCRIPTION
The body ECU controls the headlight relay, No. 2 daytime running light relay (Marking: DRL NO. 2) and
No. 4 daytime running light relay (Marking: DRL NO. 4).
WIRING DIAGRAM
Headlight (HI-BEAM) Circuit
B118202E02
Page 1871 of 2000
LI–40LIGHTING – LIGHTING SYSTEM
LI
INSPECTION PROCEDURE
(a) Connect the intelligent tester (with CAN VIM) to the
DLC3.
(b) Turn the ignition switch to the ON position and press the
intelligent tester main switch ON.
(c) Select the item below in the ACTIVE TEST and then
check the relay operation.
Main body ECU
OK:
Headlight (HIGH) comes on.
OK
1PERFORM ACTIVE TEST BY INTELLIGENT TESTER
B118203E03
Item Test Details Diagnostic Note
HEADLIGHT HI Turn headlight dimmer relay (Headlight
dimmer switch HI position): ON / OFF-
Go to step 10
Page 1872 of 2000

LIGHTING – LIGHTING SYSTEMLI–41
LI
NG
(a) Check that the headlight (LOW) comes on when the light
control switch is on (HEAD).
OK:
Headlight (LOW) comes on.
NG
OK
(a) Remove the HEAD LH fuse and HEAD RH fuse from the
engine room No. 2 relay block.
(b) Measure the resistance of the fuses.
Standard resistance:
Below 1
NG
OK
(a) Remove the No. 2 relay, No. 3 relay and No. 4 relay from
the engine room No. 2 relay block.
(b) Measure the resistance of the relays.
Standard resistance:
No. 2, No. 4
No. 3
NG
OK
2CHECK HEADLIGHT (LOW)
GO TO HEADLIGHT RELAY CIRCUIT
3INSPECT FUSE (HEAD LH, HEAD RH)
REPLACE FUSE
4INSPECT DAYTIME RUNNING LIGHT RELAY (Marking: DRL NO. 2, DRL NO. 3, DRL NO. 4)
B128080E04
Tester Connection Specified Condition
3 - 5 10 k
or higher
3 - 5 Below 1
(Battery voltage applied to terminals
1 and 2)
Tester Connection Specified Condition
4 - 5 Below 1
4 - 5 10 k or higher
(Battery voltage applied to terminals
1 and 2)
3 - 5 10 k
or higher
3 - 5 Below 1
(Battery voltage applied to terminals
1 and 2)
REPLACE DAYTIME RUNNING LIGHT RELAY