Introduction

ON BOARD DIAGNOSTIC (OBD) SYSTEM

Diagnosis Description

INTRODUCTION
The hybrid vehicle control ECU has an on board diagnostic system, which detects malfunctions related to hybrid vehicle control system, sensors, actuators or HV battery systems, and records various diagnostic information relating to the malfunction. The hybrid vehicle control ECU also illuminates the MIL and/or 3 warning lights (Hybrid system warning light, High voltage battery warning light, Charge warning light) in the combination meter. For which light illuminates, refer to HBC-611, "DTC Index". Hybrid Control System

Three-digit information code (INF code) has been provided in the conventional DTC as subset of a primary five-digit code. This enable the troubleshooting procedure to further narrow down a malfunctioning area to identify a problem.