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Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 413 (Wireless Door Lock - Diagnosis) >> DTC B1242: Wireless Door Lock Tuner Circuit Malfunction >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2004 Lexus ES 330. However, it is still accessible from the selected car via links, so may be relevant.

This DTC is output when the ground short is detected in terminal RDA or PRG.

NOTE: Wireless door lock control system use a large-scale body multiplex communications. First of all, confirm the communication function depending on the "how to proceed with troubleshooting", and check that there is no abnormality in the communication system. Then finally proceed with the troubleshooting. Confirm the DTC B1242 before troubleshooting.

HINT: The DTC detection method. (See HOW TO PROCEED WITH TROUBLESHOOTING )

Fig 1: Diagnosis Trouble Shooting Chart (DTC - B1242)
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