[54B] SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR <Hong Kong spec.> - - SYMPTOM PROCEDURES - HEADLAMP AND TAIL LAMP - INSPECTION PROCEDURE K-9: Any of tail lamps, position lamps or licence plate lamp does not illuminate. <2400>PRINT PAGE / INDEX / PRIOR / NEXT
INSPECTION PROCEDURE K-9: Any of tail lamps, position lamps or licence plate lamp does not illuminate. <2400>
 CAUTION
 Whenever the ECU is replaced, ensure that the input and output signal circuits are normal.
COMMENTS ON TROUBLE SYMPTOM
If the tail lamps, the position lamps or the licence plate lamps do not illuminate, the wiring harness connector(s), the bulb or the fuse may be defective or burned out.
POSSIBLE CAUSES
  • Burned-out bulb
  • Damaged harness wires and connectors
DIAGNOSIS PROCEDURE
Step 1. Connector check: D-14 <right tail lamp> or D-19 <left tail lamp> rear combination lamp connector, A-29 <right position lamp> or A-16 <left position lamp> headlamp assembly connector <vehicles without discharge headlamp> or A-48 <right position lamp> or A-47 <left position lamp> headlamp assembly connector <vehicles with discharge headlamp>, F-08 <right licence plate lamp> or F-10 <left licence plate lamp> licence plate lamp connector
Q: Is the check result normal?
YES:  Go to Step 2.
NO:  Repair the defective connector.
Step 2. Check the bulbs of the tail lamps, the position lamp or the licence plate lamp.
Check the bulb of the lamp which does not illuminate.
Q: Is the check result normal?
YES:  Go to Step 3.
NO:  Replace the bulb of the lamp which does not illuminate.
Step 3. Measure the resistance at the D-14 <right tail lamp> or D-19 <left tail lamp> rear combination lamp connector, the A-29 <right position lamp> or the A-16 <left position lamp> headlamp assembly connector <Vehicles without discharge headlamp> or A-48 <right position lamp> or the A-47 <left position lamp> headlamp assembly connector <Vehicles with discharge headlamp>, the F-08 <right licence plate lamp> or F-10 <left licence plate lamp> licence plate lamp connector.
  1. Disconnect the connector, and measure at the wiring harness side.
  1. Check the resistance between the lamp connector and body earth.
    • Resistance between D-14 <right tail lamp> rear combination lamp connector terminal No.3 and body earth
    • Resistance between D-19 <left tail lamp> rear combination lamp connector terminal No.3 and body earth
    • Resistance between A-29 <right position lamp> position lamp connector <Vehicles without discharge headlamp> terminal No.1 and body earth
    • Resistance between A-48 <right position lamp> position lamp connector <Vehicles with discharge headlamp> terminal No.7 and body earth
    • Resistance between A-16 <left position lamp> position lamp connector <Vehicles without discharge headlamp> terminal No.1 and body earth
    • Resistance between A-47 <left position lamp> position lamp connector <Vehicles with discharge headlamp> terminal No.7 and body earth
    • Resistance between F-08 <right licence plate lamp.> licence plate lamp connector terminal No.2 and body earth
    • Resistance between F-10 <left licence plate lamp> licence plate lamp connector terminal No.2 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 D-14 <right tail lamp> or D-19 <left tail lamp> rear combination lamp connector terminal No.3, A-29 <right position lamp> or A-16 <left position lamp> headlamp assembly connector terminal No.1 <Vehicles without discharge headlamp> or A-48 <right position lamp> or A-47 <left position lamp> headlamp assembly connector terminal No.7 <Vehicles with discharge headlamp>, F-08 <right licence plate lamp> or F-10 <left licence plate lamp> licence plate lamp connector terminal No.1 to body earth.
  • Check the earth wires for open circuit.
Q: Is the check result normal?
YES:  Go to Step 7.
NO:  Repair the wiring harness.
Step 5. Connector check: A-11X front-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 D-14 <right tail lamp> or D-19 <left tail lamp> rear combination lamp connector terminal No.2, A-29 <right position lamp> or A-16 <left position lamp> headlamp assembly connector terminal No.2 <Vehicles without discharge headlamp> or A-48 <right position lamp> or A-47 <left position lamp> headlamp assembly connector terminal No.6 <Vehicles with discharge headlamp>, F-08 <right licence plate lamp> or F-10 <left licence plate lamp> licence plate lamp connector terminal No.2 to A-11X front-ECU connector terminal No.4.
NOTE: Prior to the wiring harness inspection, check intermediate connectors C-116 <tail lamp and licence plate lamp>, C-117 <left tail lamp and licence plate lamp>, F-09 <licence plate lamp>, junction block connector C-202 <right tail lamp> and C-221 <right tail 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 tail lamps, the position lamps and the licence plate 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 ).
When the tail lamps do not illuminate:  Replace the rear combination lamp socket assembly.
When the position lamps do not illuminate:  Replace the position lamp socket.
When the licence plate lamps do not illuminate:  Replace the licence plate lamp socket.
[54B] SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR <Hong Kong spec.> - - SYMPTOM PROCEDURES - HEADLAMP AND TAIL LAMP - INSPECTION PROCEDURE K-9: Any of tail lamps, position lamps or licence plate lamp does not illuminate. <2400>PRINT PAGE / INDEX / PRIOR / NEXT
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