[52B] SUPPLEMENTAL RESTRAINT SYSTEM (SRS) - - TROUBLESHOOTING - DIAGNOSTIC TROUBLE CODE PROCEDURES - Diagnosis code 44: SRS Warning Lamp Drive Circuit System Fault 2PRINT PAGE / INDEX / PRIOR / NEXT
Diagnosis code 44: SRS Warning Lamp Drive Circuit System Fault 2
CIRCUIT OPERATION
  • Power for the SRS warning lamp is supplied from the ignition switch (IG1).
  • The SRS warning lamp illuminates when the ignition switch is turned to the "ON" position and goes out after approximately 7 seconds if there is not a malfunction in the SRS system.
DIAGNOSIS CODE SET CONDITIONS
  • This diagnosis code is set under one of the following cases while the SRS-ECU is monitoring the warning lamp drive circuit:
    • When a short circuit occurs in the warning lamp drive circuit.
    • When a malfunction is detected in the output transistor inside the SRS-ECU.
However, if the vehicle condition returns to normal, diagnosis code 44 will be automatically erased, and the SRS warning lamp will go out.
PROBABLE CAUSES
  • Damaged wiring harnesses or connectors
  • Malfunction of the SRS-ECU
PROBABLE CAUSE
STEP 1. Check the SRS warning lamp drive circuit system. Refer to .
Q: Is the SRS warning lamp drive circuit normal?
YES:  Erase the diagnosis code memory and check the diagnosis code. If diagnosis code 43 sets, replace the SRS-ECU (Refer to ). Then go to Step 2 .
STEP 2. Check whether the diagnosis code is reset.
Q: Is diagnosis code 44 set?
YES:  There is no action to be taken.
NO:  The procedure is complete (If no malfunctions are found in all steps, an intermittent malfunction is suspected). Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points .
[52B] SUPPLEMENTAL RESTRAINT SYSTEM (SRS) - - TROUBLESHOOTING - DIAGNOSTIC TROUBLE CODE PROCEDURES - Diagnosis code 44: SRS Warning Lamp Drive Circuit System Fault 2PRINT PAGE / INDEX / PRIOR / NEXT
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