[54D] SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR <Except for Hong Kong spec.> - - SYMPTOM PROCEDURES - FLASHER TIMER - INSPECTION PROCEDURE M-3: Any of the turn-signal lamps does not illuminate.PRINT PAGE / INDEX / PRIOR / NEXT
INSPECTION PROCEDURE M-3: Any of the turn-signal lamps does not illuminate.
 CAUTION
 Whenever the ECU is replaced, ensure that the input and output signal circuits are normal.
COMMENTS 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-29 <front RH> or A-16 <front LH> headlamp assembly connector, A-01 <side RH> or A-04 <side LH> side turn-signal lamp connector, D-14 <rear RH> or D-19 <rear 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 defective connector.
Step 2. Check the bulb(s) of the turn-signal lamps or the turn-signal indicator lamps.
Check the bulb(s) of the defective lamp.
Q: Is the check result normal?
YES:  Go to Step 3.
NO:  Replace the bulb(s) of the defective lamp.
Step 3. Measure the resistance at A-29 <front RH> or A-16 <front LH> headlamp assembly connector, A-01 <side RH> or A-04 <side LH> side turn-signal lamp connector, D-14 <rear RH> or D-19 <rear LH> rear combination lamp connector, C-05 <turn-signal indicator lamp> and C-04 <turn-signal indicator lamp (LH)> combination meter connector.
  1. Disconnect the connector, and measure at the wiring harness side.
  1. Measure the resistance between the defective lamp connector terminal and body earth.
    • Resistance between A-29 <front RH> headlamp assembly connector terminal No.1 and body earth
    • Resistance between A-16 <front LH> headlamp assembly connector terminal No.1 and body earth
    • Resistance between A-01 <side RH> side turn-signal lamp connector terminal No.1 and body earth
    • Resistance between A-04 <side LH> side turn-signal lamp connector terminal No.1 and body earth
    • Resistance between D-14 <rear RH> rear combination lamp connector terminal No.3 and body earth
    • Resistance between D-19 <rear 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-29 <front RH> or A-16 <front LH> headlamp assembly connector terminal No.1, A-01 <side RH> or A-04 <side LH> side turn-signal lamp connector terminal No.1, D-14 <rear RH> or D-19 <rear 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-14 <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 5. Connector check: C-217 ETACS-ECU connector
Q: Is the check result normal?
YES:  Go to Step 6.
NO:  Repair the defective connector.
Step 6. Check the wiring harness from A-29 <front RH> or A-16 <front LH> headlamp assembly connector terminal No.3, A-01 <side RH> or A-04 <side LH> side turn-signal lamp connector terminal No.2, D-14 <rear RH> or D-19 <rear LH> rear combination lamp connector terminal No.6, 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: LH drive vehicles; prior to the wiring harness inspection, check intermediate connector C-14 <side RH>, C-116 <front or side LH> or D-31 <rear LH> and junction block connector C-202 <front and side>, C-209 <rear> or C-205 <turn-signal indicator lamp>, and repair if necessary.
NOTE: RH drive vehicles; prior to the wiring harness inspection, check intermediate connector C-14 <side RH>, C-116 <front or 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.
Check that the turn-signal lamps and the indicator lamps illuminate normally.
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 headlamp assembly connectors 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.
[54D] SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR <Except for Hong Kong spec.> - - SYMPTOM PROCEDURES - FLASHER TIMER - INSPECTION PROCEDURE M-3: Any of the turn-signal lamps does not illuminate.PRINT PAGE / INDEX / PRIOR / NEXT
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