CAUTIONCOMMENTS ON TROUBLE SYMPTOM
If any of the turn-signal lamp does not illuminate normally, wiring harness connector(s)
or the bulb may be defective.POSSIBLE CAUSES
- Defective turn-signal lamp bulb
- Damaged harness wires and connectors
DIAGNOSIS PROCEDURE
Step 1. Connector check: A-41 <RH>
or
A-40 <LH>
front turn-signal lamp connector, A-01 <RH>
or
A-04 <LH>
side turn-signal lamp connector, D-14 <turn: RH>
or
D-19 <turn: LH>
rear combination lamp connector, C-05 <turn-signal indicator
lamp>
and C-04 <turn-signal indicator lamp (LH)>
combination meter
connector
Q: Is the check result normal?
YES:
Go to Step 2
.NO: Repair the connector.
Step 3. Measure the resistance at the A-41 <RH>
or
A-40 <LH>
front turn-signal lamp connector, the A-01 <RH>
or A-04 <LH>
side
turn-signal lamp connector, the D-14 <turn: RH>
or D-19 <turn: LH>
rear
combination lamp connector, the C-05 <turn-signal indicator lamp>
combination
meter connector.
- Disconnect the connector, and measure at the wiring harness side.
- Measure the resistance between the defective lamp connector terminal and body earth.
- Resistance between A-41 <RH> headlamp assembly connector terminal No.2 and body earth
- Resistance between A-40 <LH> headlamp assembly connector terminal No.2 and body earth
- Resistance between A-01 <RH> side turn-signal lamp connector terminal No.1 and body earth
- Resistance between A-04 <LH> side turn-signal lamp connector terminal No.1 and body earth
- Resistance between D-14 <turn: RH> rear combination lamp connector terminal No.3 and body earth
- Resistance between D-19 <turn: LH> rear combination lamp connector terminal No.3 and body earth
- Resistance between C-05 <turn-signal indicator lamp> combination meter terminal No.12 and body earth
OK: 2 Ω
or less
Q: Is the check result normal?
YES:
Go to Step 5.NO: Go to Step 4
.Step 4. Check the wiring harness from A-41 <RH>
or
A-40 <LH>
front turn-signal lamp connector terminal No.2, A-01 <RH>
or
A-04 <LH>
side turn-signal lamp connector terminal No.1, D-14 <turn:
RH>
or D-19 <turn: LH>
rear combination lamp connector terminal No.3,
or C-05 <turn-signal indicator lamp>
combination meter connector terminal
No.12 to body earth.
NOTE: Prior to the wiring harness inspection, check intermediate connector C-29 <side
RH>, and repair if necessary.
- Check the earth wires for open circuit.
Q: Is the check result normal?
YES:
The trouble can be an intermittent malfunction (Refer to GROUP 00 -
How
to Cope with Intermittent Malfunction 
).NO: Repair the wiring harness.
Step 6. Check the wiring harness from the A-41 <RH>
or
A-40 <LH>
front turn-signal lamp connector terminal No.1, the A-01 <RH>
or
A-04 <LH>
side turn-signal lamp connector terminal No.2, the D-14 <turn:
RH>
or D-19 <turn: LH>
rear combination lamp connector terminal No.6,
the C-05 <turn-signal indicator lamp (RH)>
combination meter connector terminal
No.10 or C-04 <turn-signal indicator lamp (LH)>
combination lamp connector
terminal No.31 to C-217 ETACS-ECU connector terminal No.9 <RH>
or 14 <LH>.
NOTE: Prior to the wiring harness inspection, check intermediate connector C-29 <side
RH>, C-116 <front and side LH>
or C-117 <rear LH>
and
junction block connector C-202 <front, side and rear LH>, C-221 <rear
RH>
or C-205 <turn-signal indicator lamp>, and repair if necessary.
- Check the output lines for open circuit.
Q: Is the check result normal?
YES:
Go to Step 7.NO: Repair the wiring harness.
Step 7. Retest the system.
Q: Is the check result normal?
The lamps illuminate normally at both high and low beams.:
The trouble can be an intermittent malfunction (Refer to GROUP 00 -
How
to Cope with Intermittent Malfunction ).The front turn-signal lamps do not illuminate.: Replace the socket.
The side turn-signal lamps do not illuminate.: Replace the socket.
The rear turn-signal lamps do not illuminate.: Replace the socket assembly.
The turn-signal indicator lamps do not illuminate.: Replace the combination meter.