2018 / ECLIPSE CROSS / EC - Workshop Manual
52 -INTERIOR AND SUPPLEMENTAL RESTRAINT SYSTEM(SRS) > 52B-SUPPLEMENTAL RESTRAINT SYSTEM (SRS) > TROUBLESHOOTING > SYMPTOM PROCEDURES > WHEN THE IGNITION SWITCH IS TURNED TO "ON", THE SRS WARNING LAMP DOES NOT ILLUMINATE.
Inspection Procedure 3: SRS warning lamp does not illuminate.
 
 
 
 
OPERATION
  • The SRS warning lamp illuminates when the ignition switch is turned to the "ON" position and goes out after approximately 6 to 8 seconds if there is not a malfunction in the SRS system.
  • SRS-ECU sends the SRS warning lamp signal to the combination meter via the CAN communication.
  • As a cause, the failure of CAN bus line, combination meter, or SRS-ECU is suspected.
 
 
PROBABLE CAUSES
  • Damaged wiring harness and connectors
  • Combination meter malfunction
  • Malfunction of SRS-ECU
 
 
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 lines (refer to Group 54C - Troubleshooting ).
 
STEP 2. M.U.T.-IIISE actuator test
Use M.U.T.-IIISE to perform the SRS-ECU actuator tests.
Item No. 01: SRS warning lamp
Does the SRS warning lamp turn on and off normally?
Go to Step 4.
Go to Step 3.
 
STEP 3. M.U.T.-IIISE other system special function
Use M.U.T.-IIISE to perform the combination meter special function (Refer to GROUP 54A - Combination Meter - Special function table ).
  • Item No. 9: Indicator (AUTO)
Does the SRS warning lamp turn on and off normally?
Replace SRS-ECU (Refer to ).
Replace the combination meter (Refer to GROUP 54A - Combination Meter - Combination meter ).
 
STEP 4. Recheck of the SRS warning lamp
(1) Connect the negative battery terminal.
(2) Ignition switch: ON
Does the lamp illuminate?
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction ).
This diagnosis is complete.