[ Model - ECLIPSE CROSS / Year - 2018 ]
2018 / ECLIPSE CROSS / EC - Workshop Manual
54 -CHASSIS ELECTRICAL > 54A-CHASSIS ELECTRICAL > REAR COMBINATION LAMP > SYMPTOM PROCEDURES > THE STOP LAMPS DO NOT ILLUMINATE OR GO OUT NORMALLY.<REAR COMBINATION LAMP BULB TYPE><REAR COMBINATION LAMP BULB TYPE>
Inspection Procedure 2: The stop lamps do not illuminate or go out normally.
 
 
 
 
COMMENTS ON TROUBLE SYMPTOM
If the stop lamps do not illuminate or go out normally, the stop lamp switch input signal circuit, or the stop lamps may be defective.
 
 
PROBABLE CAUSES
  • Malfunction of stop lamp switch input signal circuit
  • Malfunction of rear combination lamp (LH)
  • Malfunction of rear combination lamp (RH)
  • Malfunction of high-mounted stop lamp
  • Damaged harness wires and connectors
 
 
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-IIISE data list.
Use the ETACS-ECU service data to check the signals related to the stop lamp illumination.
  • Depress the brake pedal.
 
Item No.Item nameNormal condition
113Stop lamp switchON
OK: Normal condition is displayed.
Is the check result normal?
Go to Step 2.
Troubleshoot the ETACS-ECU (Refer to Inspection Procedure 12 "The stop lamp switch signal is not received." ).
 
STEP 2. Resistance measurement at the stop lamp connectors (earth terminals).
(1) Disconnect the connector, and measure at the wiring harness side.
(2) Measure the resistance between the rear combination lamp (LH) connector (earth terminal) and body earth.
OK: Continuity exists (2 Ω or less)
(3) Measure the resistance between the rear combination lamp (RH) connector (earth terminal) and body earth.
OK: Continuity exists (2 Ω or less)
(4) Measure the resistance between the high-mounted stop lamp connector (earth terminal) and body earth.
OK: Continuity exists (2 Ω or less)
Is the check result normal?
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction ).
Go to Step 3.
 
STEP 3. Check of open circuit in earth line between the rear combination lamp (LH) connector, rear combination lamp (RH) connector, high-mounted stop lamp connector and body earth.
Is the check result normal?
Go to Step 4.
Repair the connector(s) or wiring harness.
 
STEP 4. Voltage measurement at stop lamp connectors (power supply terminals).
(1) Disconnect the connector, and measure at the wiring harness side.
(2) Stop lamp switch: ON.
(3) Check the voltage between the rear combination lamp (LH) connector (power supply terminal) and body earth.
OK: System voltage
(4) Check the voltage between the rear combination lamp (RH) connector (power supply terminal) and body earth.
OK: System voltage
(5) Check the voltage between the high-mounted stop lamp connector (power supply terminal) and body earth.
OK: System voltage
Is the check result normal?
Go to Step 6.
Go to Step 5.
 
STEP 5. Check of short to power supply, short to earth, and open circuit in STLO line between ETACS-ECU connector and rear combination lamp (LH) connector, rear combination lamp (RH) connector, high-mounted stop lamp connector.
Is the check result normal?
Go to Step 6.
Repair the connector(s) or wiring harness.
 
STEP 6. Retest the system
Check that the stop lamps illuminates normally.
Is the check result normal?
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction ).
Replace the rear combination lamp unit or high-mounted stop lamp.