Displaying & Reading Trouble Codes

NOTE: This is the only information provided by the manufacturer for reading diagnostic trouble codes for this system.

NOTE: This article contains corrected data processed from TSB# PG001-05.

PRE-CHECK




1. DIAGNOSIS SYSTEM
(a) As shown in the illustration, each ECU of this vehicle is connected by communication bus and it transmits each signal by communication. This communication bus is self-diagnosed by Body ECU and it memorizes DTC when it detects communication stop to ECU or communication bus +B short or OND short. There is a possibility that Body ECU cannot self-diagnose accurately unless it doesn't work normal. So, please note that the troubleshooting of Body Electrical System should be done after confirming if Body ECU and Open door indicator works normal by Step 2. "BASIC INSPECTION" described below.




(b) If DTC of ECU communication stop is output, there is a possibility of connector disconnection or 2 communication buses open. It will not become abnormal with only 1 communication bus open.




(c) If 2 communication buses are open at the position as shown in the illustration, DTC of ECU communication stop between those 2 buses is output.

2. BASIC INSPECTION

Inspect Body ECU (Steps 1-2):

Inspect Body ECU (Step 3):

Inspect Body ECU (Step 4):

Inspect Body ECU (Step 5):

Basic inspection is for checking Body ECU normal operation.


3. DTC CLEARANCE
A Multiplex DTC indicates that a problem has been detected in the Multiplex System. Once the problem is corrected and the system begins to operate as designed, the DTC will be cleared automatically. There is no need to manually clear a multiplex DTC using the hand-held tester.