Inspection Procedure

WARNING: This page is about a different car, the 2002 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.

Check voltage between terminals Tc and E1 of DLC3.
Preparation : Turn ignition switch ON.

Check : measure voltage between terminals Tc and E1 of DLC3.

OK : voltage: 10 - 14 V.

Fig 1: Locating Terminal Tc Of DLC1
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. OK : Proceed to next circuit inspection shown in problem symptoms. See PROBLEM SYMPTOMS .
2. NG : Go to step 2.
Check harness and connector between body ECU and DLC3, DLC3 and body ground . See HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS .
1. NG : Repair or replace harness or connector.
2. OK : Check and replace Body ECU. See PROBLEM SYMPTOMS .