Analyzer - Toyota 7FBEF 15 Service Manual

I Analyzer
General
1. The analyzer supports inspection and troubleshooting of the control system using the communication
function between the traveling/material handling controller and the display.
2. Setting the display into the ANALYZER screen makes it possible to inspect and detect abnormality in
functions of the operating system and sensors, such as main traveling, material handling, EHPS, SAS
circuits and the accelerator.
3. Utilization of the analyzer functions enables quick, easy servicing.
4. The analyzer has the following functions:
(1) Diagnosis memory function (DIAG MEMORY)
The controller stores up to 10 error codes detected in the electrical system in the past. The
diagnosis memory function displays these error codes.
Each error code is displayed with its detection time as the key ON hour meter reading.
(2) In/Out monitor function (I/O MONITOR)
This function displays the analog input values from individual sensors in the traveling, material
handling, EHPS and SAS systems. The circuit or sensor quality can be judged by monitoring the
displayed value.
(a) I/O MONITOR1
Displays the temperature of each electrical functional part and the analog input voltage
detected by each controller.
(b) I/O MONITOR2
Displays the ON/OFF states of traveling-related switches and the analog input voltage from
related sensors.
(c) I/O MONITOR3
Displays ON/OFF of switches related to traveling and mast control and the analog input
voltage values from related sensors.
(d) I/O MONITOR4
Displays the ON/OFF states of steering knob synchronizer-related and other switches and
the analog input voltage values from related sensors.
(3) Active test function (ACTIVE TEST)
The controller outputs an operation signal (ON or OFF signal) to the selected item in order to permit
operation check of that function.
(4) One error code at the time is displayed in the upper right-hand portion on both the I/O MONITOR
and ACTIVE TEST screens.
5-25