Inspection Procedure

Check for open and short circuit in harness and connector between terminal NEO of Translate ECU and terminal NEO of ECM. See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE .
1. OK: Go to next step .
2. NG: Repair or replace harness and connector .
Check voltage between terminal NEO (13) of Translate ECU and body ground .
Remove the Translate ECU with connectors still connected.
1. Turn the ignition switch ON.
2. Measure the voltage between terminal 13 of the Translate ECU and body ground under the engine conditions below.
OK: See Fig 2 .

Fig 2: Translate ECU Specifications
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 3: Identifying Translate ECU Reference Voltage Signal
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. OK: Check and replace Translate ECU . If the same code is still output after the DTC is deleted, check the contact condition of each connection.
2. NG: Check and replace ECM .