Precautions for trouble diagnosis
CAUTION:
Precautions for Harness Repair
Note: a fray of twisted lines must be within 110 mm (4.33 In).

NOTE: Bypass connection may cause CAN communication error. The spliced wire becomes separated and the characteristics of twisted line are lost.

CAN fundamental
System descriptionBasic inspection
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow
DETAILED FLOW
1.COLLECT THE INFORMATION FROM THE CUSTOMER
Get the detailed information from the customer about the symptom (the
condition and the environment when
the incident/malfunction occurred) using the diagnosis worksheet.
>> GO TO 2.
2. ...
Power window retained power operation does not operate
properly
Diagnosis Procedure
1.CHECK DOOR SWITCH
Check door switch.
Refer to DLK-149, "Component Function Check" (with Intelligent Key system) or
DLK-319,
"Component Function Check" (without Intelligent Key system).
Is the inspection result normal?
YES >> GO TO 2.
NO ...
P1574 ASCD vehicle speed sensor
Description
The ECM receives two vehicle speed sensor signals via CAN communication line.
One is sent from combination
meter, and the other is from TCM (Transmission control module). The ECM uses
these signals for ASCD
control. Refer to EC-47, "AUTOMATIC SPEED CONTROL DEVICE (ASCD) : Sys ...