Toyota 7FBCU 15-55, Manual, Page: 64 / 80

2-30
BOARD INSPECTION
If the cause of the trouble is judged to exist in any board, check the applied voltage and the resistance at
each connector.
Also check the following items, since they may damage the board in its normal state or cause a new
problem.
• Abnormality of related circuit harnesses
• Looseness of related circuit connector
• Broken or bent connector pin or defective connector pin contact on related circuits
Applied voltage and resistance measurement
(1) Connecting SST
(a) Disconnect battery plug and turn the key switch to OFF.
(b) Connect the SST to the connector pin to be measured.
Caution:
• Before starting the job, measure the voltage between P4 and N1; if there is any voltage, insert a
resistor at approx. 100
Ω
between P4 and N1 to discharge the capacitor. The material handling
controller on models 35 to 55 is between P12 and N2.
• Always disconnect the battery plug before installing or removing the controller ASSY or each
board.
• Since incorrect SST connection may damage a normal portion, always perform correct
connection.
• Always disconnect the battery plug before resistance measurement.
SST 09230-13700-71
Applicable connector
Traveling/material handling (15 ~ 32 model), Traveling
(35 ~ 55 model) controller
CPU board
:CN105 to CN107
DC/MC board :CN108 to CN110
PS controller (15 ~ 32 model)
EHPS board
:CN146
Material handling controller (35 ~ 55 model)
SCPU board
:CN150 and CN152
SST 09240-23400-71
Applicable connector
Traveling/material handling (15 ~ 32 model), Traveling
(35 ~ 55 model) controller
CPU board
:CN101 to CN104
SAS controller
ST board
:CN141 to CN143
PS controller (15 ~ 32 model)
EHPS board
:CN145
Material handling controller (35 ~ 55 model)
SCPU board
:CN147, CN148
DC/PD board :CN154, CN155
SST
SST
DC/PD board :CN153
S2 controller.fm 30 ページ ２００２年６月７日 金曜日 午後２時２２分