MDX V6-3471cc 3.5L (2002)
Information Bus: Diagnostic Trouble Code Tests and Associated Procedures
Multiplex Control System
Troubleshooting
Special Tools Required
SCS Service Connector 07WAZ-001010A
1. Check the No.9 (10A) fuse in the driver's under-dash fuse/relay box, and the No.13 (7.5A) fuse in the passenger's under-dash fuse/relay box.
Are the fuses OK?
YES - Go to step 2.
NO - Find and repair the cause of the blown fuse.
2. Connect the special tool to the multiplex control inspection connector (A).
3. Turn the ignition switch ON (II).
If the driver's seat belt is unbuckled, the seat belt reminder will beep five times.
4. Check self-diagnosis function Mode 1 for a diagnostic trouble code (DTC). After about 5 seconds, the ignition key light should come on and the
beeper should beep for 2 seconds, go off for 0.2 seconds, then blink and beep for 0.2 seconds. This means that you are in Model of the
self-diagnosis function.
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If the system enters Mode 1, go to step 5.
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If the system does not enter Mode 1, see if the SCS circuit is working properly. Go to step 6.
5. About 1 second after you go into self-diagnosis Mode 1, the ignition key light and beeper indicate the DTC, and repeat it every 3 seconds. If there
is a code, it will blink/beep, pause, then repeat the code as long as the ignition switch is ON (II). If there is more than one DTC, the system will
indicate them in ascending order, beginning with the DTC with the lowest numerical value.
Does the ignition key light blink and the beeper beep?
