Analyzer - Toyota 8FGU15 Repair Manual

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7.2.3 ANALYZER

7.2.3.1 GENERAL
Analyzer function supports operations for inspecting/investigating faulty section by displaying the condition of
the control system, using communication between each controller and the multi-function display DX.
By switching the multi-function display DX to analyzer mode, operative conditions of the sensor actuator that
is used for traveling, material handling, FHPS and SAS/OPS functions, or the error information detected by
the controller can be read. This is very useful for checking operative condition of each function and saving
time for repairing when there is a defect.
Full utilization of the analyzer functions helps quick, easy servicing.
The analyzer has the following functions:
1. Diagnosis memory function "DIAG MEMORY"
The controller stores up to 10 error codes (diagnosis codes) detected in the electrical system in the past.
The diagnosis function reads these error codes and indicates them on the display.
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,
FHPS, SAS and OPS systems. Monitoring the displayed values enables the quality of each circuit/sensor
to be judged.
(1) "I/O ENGINE CTRL"
Displays ON/OFF states of the engine controller switch, various input values including analog input
voltage from the sensor and correction value of the control.
(2) "I/O TRAVELING"
Displays each switch ON/OFF state and analog input voltages from sensors for traveling and swing con-
trol.
(3) "I/O M.HANDLING"
Displays the material handling and mast switch ON/OFF states and analog input voltages from material
handling and mast sensors.
(4) "I/O STEERING"
Displays the ON/OFF states of knob position correction control and the analog input voltages from re-
spective sensors.
(5) "I/O OTHERS"
Displays the ON/OFF states of hour meter time and other switches and the analog input voltages from
respective sensors.
3. Active test "ACTIVE TEST"
In the active test mode, the controller forcibly outputs an activation signal (ON or OFF signal) to the se-
lected item in order to permit operation check of that function.
4. Program version display "VERSION"
Displays program version of each controller.
7 DISPLAY