[ Model - ECLIPSE CROSS / Year - 2018 ]
2018 / ECLIPSE CROSS / EC - Workshop Manual
54 -CHASSIS ELECTRICAL > 54A-CHASSIS ELECTRICAL > HEADLAMP AUTOMATIC LEVELLING SYSTEM<Vehicles with headlamp auto levelling system><Vehicles with headlamp auto levelling system> > DIAGNOSIS CODE PROCEDURES > Code No. B2514 Height sensor power supply error
Code No. B2514 Height sensor supply voltage
 
 
caution
  • Before replacing the ECU, ensure that the power supply circuit, the earth circuit and the communication circuit are normal.
 
 
 
 
DIAGNOSTIC FUNCTION
If a trouble occurs in height sensor, code No. B2514 is set.
 
 
JUDGEMENT CRITERIA
The ETACS-ECU detects the power supply error of the height sensor (less than 4.2 V, or 5.8 V or more) for 1 second or longer continuously.
 
 
PROBABLE CAUSES
  • Malfunction of the front height sensor
  • Malfunction of the rear height sensor
  • Malfunction of the ETACS-ECU
  • Damaged harness wires and connectors
 
 
DIAGNOSIS PROCEDURE
STEP 1. Voltage measurement at front height sensor connector (SBF terminal).
(1) Disconnect the connector, and measure at the wiring harness-side connector.
(2) Turn the ignition switch to the "ON" position.
(3) Measure the resistance between the front height sensor connector (SBF terminal) and body earth.
OK: 5 V
Is the check result normal?
Go to Step 3.
Go to Step 2.
 
STEP 2. Check of short to power supply, short to earth circuit in SBF line between front height sensor connector and ETACS-ECU connector.
Is the check result normal?
Go to Step 3.
Repair the connector(s) or wiring harness.
 
STEP 3. Check whether the diagnosis code is set again.
Is diagnosis code No. B2514 set?
Go to Step 4.
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to use Troubleshooting/inspection Service Points - How to cope with Intermittent Malfunctions ).
 
STEP 4. Voltage measurement at rear height sensor connector (SBR terminal).
(1) Disconnect the connector, and measure at the wiring harness-side connector.
(2) Turn the ignition switch to the "ON" position.
(3) Measure the resistance between the rear height sensor connector (SBR terminal) and body earth.
OK: 5 V
Is the check result normal?
Go to Step 6.
Go to Step 5.
 
STEP 5. Check of short to power supply, short to earth circuit in SBR line between rear height sensor connector and ETACS-ECU connector.
Is the check result normal?
Go to Step 6.
Repair the connector(s) or wiring harness.
 
STEP 6. Check whether the diagnosis code is set again.
Is diagnosis code No. B2514 set?
Go to Step 7.
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to use Troubleshooting/inspection Service Points - How to cope with Intermittent Malfunctions ).
 
STEP 7. M.U.T.-IIISE data list
Disconnect the front and rear height sensor connector, and check the power supply voltage to the height sensor.
 
Item No.Item nameNormal condition
200Height sensor power supply voltage5 V
OK: Normal condition is displayed.
Is the check result normal?
Go to Step 8.
Go to Step 11.
 
STEP 8. Front height sensor check
Check the front height sensor for the internal failure. Refer to .
Is the check result normal?
Go to Step 9.
Replace the front height sensor.
 
STEP 9. Check whether the diagnosis code is set again.
Is diagnosis code No. B2514 set?
Go to Step 10.
The diagnosis is complete.
 
STEP 10. Rear height sensor check
Check the rear height sensor for the internal failure. Refer to .
Is the check result normal?
Go to Step 11.
Replace the rear height sensor.
 
STEP 11. Check whether the diagnosis code is set again.
Is diagnosis code No. B2514 set?
Replace the ETACS-ECU.
The diagnosis is complete.