Torque Converter Oil Temperature Indicator Stays At Level 1; Torque Converter Oil Temperature Indicator Costantly Displays Overheat; Torque Converter Oil Temperature Indicator Does Not Display - Toyota 8FGU15 Repair Manual

8-166
Control type
Display function
Phenomenon on Malfunction area
vehicle and mode
Vehicles with
MULTI-FUNCTION
DISPLAY DX:
Torque converter oil
temperature indic-
ator stays at level 1.
Vehicles with
MULTI-FUNCTION
DISPLAY DX:
Torque converter oil
temperature indic-
ator continually dis-
plays overheat warn-
ing indication.
Vehicles with
MULTI-FUNCTION
DISPLAY DX:
Torque converter oil
temperature indic-
ator does not dis-
play.
Checking method
▪ Torque con-
verter oil temper-
ature sensor
unit:
Open fault (In-
ternal damage)
Start the engine and
▪ Torque con-
after leaving the
verter oil temper-
vehicle running for a
ature sensor line
while, check the in-
(Signal, ground):
dicator.
Disconnection
fault (Harness,
connector)
+B short fault
(Harness, con-
nector)
▪ SAS/OPS con-
troller:
-
Controller defect
▪ Torque con-
verter oil temper-
ature sensor
unit:
Short fault (In-
Stop the engine and
ternal damage)
after leaving the
vehicle stopped for a
▪ Torque con-
while, check the in-
verter oil temper-
dicator.
ature sensor line
(Signal):
Ground short
fault (Harness,
connector)
▪ SAS/OPS con-
troller:
-
Controller defect
▪ Display setting:
Check that the TEM-
Torque con-
PGAUGE on the op-
verter oil temper-
tion set screen is set
ature emergency
to YES.
setting enabled
8 TROUBLESHOOTING
Corrective action
Harness check or re-
place sensor, or re-
place SAS/OPS con-
troller
Replace
Harness check or re-
place sensor, or re-
place SAS/OPS con-
troller
Replace
If the TEMPGAUGE
is set to NO on the
option set screen,
change it to YES.