Description
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
DTC Logic
DTC DETECTION LOGIC

Diagnosis Procedure
1.CHECK CONNECTOR

C1156 ST ANG sen com cir
Parking brake switchIntelligent key system/engine start function symptoms
Symptom Table
Engine cannot be started with all Intelligent Keys.
CAUTION:
Follow Trouble Diagnosis Flowchart
referring to "SEC-4, "Work Flow"". Determine malfunctioning
condition before performing this diagnosis.
Check that vehicle is under the
condition shown in "Conditio ...
Rear window defogger switch
Description
The rear window defogger is operated by turning the rear window defogger
switch ON.
Turns the indicator lamp in the rear window defogger switch ON
when operating the rear window defogger.
Component Function Check
1. CHECK REAR WINDOW DEFOGGER SWITCH FUNCTION
Check that t ...
Diagnosis and repair workflow
Work Flow
OVERALL SEQUENCE
DETAILED FLOW
1.CHECK SYMPTOM
Check the malfunction symptoms by performing the following items.
Interview the customer to obtain the malfunction information (conditions
and environment when the malfunction
occurred).
Check the symptom.
2.SELF-DIAGNOS ...