[ Model - ECLIPSE CROSS / Year - 2018 ]
2018 / ECLIPSE CROSS / EC - Workshop Manual
54 -CHASSIS ELECTRICAL > 54A-CHASSIS ELECTRICAL > TURN-SIGNAL LAMP > DIAGNOSIS CODE PROCEDURES > CODE NO. B16A4 BLOWN TURN-SIGNAL LAMP (RH) BULB
Code No.B16A4 Turn signal(RH) bulb outage
 
 
caution
  • Before replacing the ECU, ensure that the power supply circuit, the earth circuit and the communication circuit are normal.
 
 
 
 
DIAGNOSTIC FUNCTION
When the right bulb of turn-signal lamp is blown, the ETACS-ECU sets diagnosis code No. B16A4.
 
 
JUDGEMENT CRITERIA
The ETACS-ECU sets diagnosis code No. B16A4 under the following conditions.
  1. With the diagnosis code not set, if there is a malfunction to the right turn-signal lamp bulb, the blown right bulb counter counts once when the illumination of hazard or turn-signal lamp (right side) is attempted.
  2. If the blown right bulb counter reaches "3," diagnosis code No. B16A4 is set.
 
 
PROBABLE CAUSES
  • Malfunction of turn-signal lamp bulb (right side)
  • Damaged harness wires and connectors
  • Malfunction of the ETACS-ECU
 
 
DIAGNOSIS PROCEDURE
STEP 1. Bulb check
Check whether the bulb of turn-signal lamp which does not illuminate is normal.
Is the check result normal?
Go to Step 2.
Replace the bulb of turn-signal lamp which does not illuminate.
 
STEP 2. Resistance measurement at the turn-signal lamp (RH) connector, door mirror assembly (RH) connector and rear combination lamp (TURN: RH) connector.
(1) Disconnect the connector, and measure at the wiring harness side.
(2) Measure the resistance between the connector terminal of lamp which does not illuminate and the body earth.
  • Measure the resistance between the turn-signal lamp (RH) connector (earth terminal) and the body earth.
  • Measure the resistance between the door mirror assembly (RH) connector (earth terminal) and the body earth.
  • Measure the resistance between the rear combination lamp (TURN: RH) connector (earth terminal) and the body earth.
OK: Continuity exists (2 Ω or less)
Is the check result normal?
Go to Step 4.
Go to Step 3.
 
STEP 3. Check of open circuit in earth line between turn-signal lamp (RH) connector, door mirror assembly (RH) connector or rear combination lamp (TURN: RH) connector and the body earth.
Is the check result normal?
Go to Step 4.
Repair the connector(s) or wiring harness.
 
STEP 4. Check of open circuit in TR1 line between ETACS-ECU connector and turn-signal lamp (RH) connector
Is the check result normal?
Go to Step 5.
Repair the connector(s) or wiring harness.
 
STEP 5. Check of open circuit in TR2&TR3 line between ETACS-ECU connector and rear combination lamp (TURN: RH) connector.
Is the check result normal?
Go to Step 6.
Repair the connector(s) or wiring harness.
 
STEP 6. Check of open circuit in TR2&TR3 line between ETACS-ECU connector and door mirror assembly (RH) connector.
Is the check result normal?
Go to Step 7.
Repair the connector(s) or wiring harness.
 
STEP 7. Check whether the diagnosis code is set again.
(1) Erase the diagnosis code.
(2) Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
(3) Check if diagnosis code is set.
Is the diagnosis code set?
Replace the ETACS-ECU.
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction ).