SYSTEM DIAGRAM
How To Proceed With Troubleshooting
Basic InspectionTransmission Fluid Pressure Sensor / Switch "E" Circuit Low (P0989,P0990)
DESCRIPTION
ATF pressure switch No. 3 is installed in the lock-up solenoid ATF output passage
and is used to detect a malfunction in the lock-up solenoid.
DTC No.
DTC Detection Condition
Trouble Area
P0989
...
Light bulbs
You may replace the following bulbs yourself. The difficulty level of replacement
varies depending on the bulb. If necessary bulb replacement seems difficult to perform,
contact your Toyota dealer.
For more information about replacing other light bulbs, c ...
Road Test
ROAD TEST
1. PROBLEM SYMPTOM CONFIRMATION
(a) Inspect the SET function.
Text in Illustration
*1
ON/OFF
*2
- SET
(1) Turn the cruise control main switch on.
(2) Drive at the required speed of bet ...