B1542

This document has been updated per Mitsubishi TSB# 06-52b-001



DTC B1540: Occupant classification-ECU malfunction
DTC B1541: Occupant classification-ECU calibration malfunction
DTC B1542: Occupant classification sensor (S1) malfunction
DTC B1543: Occupant classification sensor (S2) malfunction
DTC B1558: Occupant classification-ECU ID-cord malfunction

B1540 - B1558:

DTC SET CONDITIONS
These DTC are set when a fault is detected in the occupant classification-ECU. The most likely causes for this code to be set are shown in the table:

TROUBLESHOOTING HINTS
Malfunction of the occupant classification-ECU

DIAGNOSIS

Required Special Tools:
- MB991958: Scan Tool (MUT-III Sub Assembly)
- MB991824: V.C.I.
- MB991827: MUT-III USB Cable
- MB991910: MUT-III Main Harness A

Check for diagnostic trouble code.

Q: Are the DTCs set?

YES: Replace the front seat slide adjuster (Refer to Interior, Front Seat Assembly).

NO: There is an intermittent malfunction such as poor engaged connector(s) or open circuit (How to Cope with Intermittent Malfunction).