Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Echo 2000-2002 Approved techinfo.toyota.com ileaf 02toyrm 02toypdf 02rmsour 2002 02echorm di ax cip0773
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DIAGNOSTICS - AUTOMATIC TRANSAXLE
DI6UK-02
DTC P0773 Shift Solenoid E Electrical Malfunction
(Shift Solenoid Valve SL)
CIRCUIT DESCRIPTION
The shift solenoid valve SL is turned ON and OFF by signals from the ECM to control the hydraulic pressure
acting on the lock-up relay valve, which then controls operation of the lock-up clutch.
Fail safe function:
If the ECM detects a malfunction, it turns the shift solenoid valve SL OFF.
DTC No. DTC Detecting Condition Trouble Area
Either (a) or (b) is detected for 1 time.
(2-trip detection logic)
S Open or short in shift solenoid valve SL circuit
(a) Solenoid resistance is 8 or less when solenoid is ener-
P0773 S Shift solenoid valve SL
gized.
S ECM
(b) Solenoid resistance is 100 k or more when solenoid is not
energized.
WIRING DIAGRAM
Transaxle ECM
Shift Solenoid
Valve SL 4 6
G
E1 E5 SL
LG
D07913
2002 ECHO (RM884U)
Author : Date : 350
DI-181
DIAGNOSTICS - AUTOMATIC TRANSAXLE
INSPECTION PROCEDURE
1 Measure resistance between terminal SL of ECM and body ground.
PREPARATION:
Disconnect the connector from ECM.
CHECK:
Measure resistance between terminal SL of ECM and body
ground.
OK:
Resistance: 11 - 15 at 20
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