[ Model - ECLIPSE CROSS / Year - 2018 ]
2018 / ECLIPSE CROSS / EC - Workshop Manual
52 -INTERIOR AND SUPPLEMENTAL RESTRAINT SYSTEM(SRS) > 52B-SUPPLEMENTAL RESTRAINT SYSTEM (SRS) > TROUBLESHOOTING > DIAGNOSIS CODE PROCEDURES > DTC B1406 G-SENSOR OF FRONT IMPACT SENSOR (RH) FAILURE
Code No.B1406 Malfunction of G-sensor inside right front impact sensor
Code No.B1416 Malfunction of G-sensor inside left front impact sensor
 
 
cautionIf the diagnosis code B1406 or B1416 is set to SRS-ECU, be sure to diagnose the CAN bus line.
 
 
TROUBLE JUDGEMENT
  • Analogue G-sensor in front impact sensor does not operate.
  • Characteristics of analogue G-sensor in front impact sensor are abnormal.
  • Output of analogue G-sensor in front impact sensor is abnormal.
 
 
PROBABLE CAUSES
  • Malfunction of CAN bus line
  • Malfunction of right front impact sensor (with code No. B1406)
  • Malfunction of left front impact sensor (with code No. B1416)
 
 
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-IIISE CAN bus diagnostics.
Use M.U.T.-IIISE to diagnose the CAN bus lines.
Is the check result normal?
Go to Step 2
Repair the CAN bus line (Refer to GROUP 54C - Troubleshooting ).
 
STEP 2. Front impact sensor check.
(1) Check that the negative battery terminal is disconnected. If the negative battery terminal is connected, disconnect it.
(2) A front impact sensor is checked in the following way.
  • Replace the front impact sensor with new part.
(3) Connect the negative battery terminal.
(4) After erasing the diagnosis code memory, check the diagnosis code again.
(5) Disconnect the negative battery terminal.
Is the diagnosis code set?
Replace the SRS-ECU (Refer to ).
An intermittent malfunction is suspected (Refer to GROUP 00, How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).