Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 2004-2007 Approved SRM 04 05 2011n cip2769
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05-630 DIAGNOSTICS - ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] 0527R-41
DTC P2769 DSL SOLENOID CIRCUIT LOW (SHIFT
SOLENOID VALVE DSL)
DTC P2770 DSL SOLENOID CIRCUIT HIGH (SHIFT
SOLENOID VALVE DSL)
CIRCUIT DESCRIPTION
The shift solenoid valve DSL is turned ON and OFF by signals from the ECM in order to control the hydraulic
pressure operation, the lock-up relay valve, which then the controls operation of the lock-up clutch.
DTC No. DTC Detection Condition Trouble Area
S Short in shift solenoid valve DSL circuit
ECM detects short in solenoid valve DSL circuit (0.1 sec.)
P2769 S Shift solenoid valve DSL
when solenoid valve DSL is operated (2-trip detection logic)
S ECM
ECM detects open in solenoid valve DSL circuit (0.1 sec.) S Open in shift solenoid valve DSL circuit
P2770 when solenoid valve DSL is not operated (2-trip detection S Shift solenoid valve DSL
logic) S ECM
Fail safe function:
If the ECM detects a malfunction, it turns the shift solenoid valve DSL OFF.
MONITOR DESCRIPTION
Torque converter lock-up is controlled by the ECM based on engine rpm, engine load, engine temperature,
vehicle speed, transmission temperature, and shift range selection. The ECM determines the lock-up status
of the torque converter by comparing the engine rpm (NE) to the input turbine rpm (NT). The ECM calculates
the actual transmission gear by comparing input turbine rpm (NT) to counter gear rpm (NC). When conditions
are appropriate, the ECM requests "lock-up" by applying control voltage to shift solenoid DSL. When the
DSL is opened, solenoid DSL applies pressure to the lock-up relay valve and locks the torque converter
clutch. If the ECM detects an open or short in the DSL solenoid circuit, the ECM interprets this as a fault in
the DSL solenoid or circuit. The ECM will turn on the MIL and store the DTC.
MONITOR STRATEGY
P2769: Shift solenoid valve DSL/Range check (Low resistance)
Related DTCs
P2770: Shift solenoid valve DSL/Range check (High resistance)
Required sensors/Components Shift solenoid valve DSL
Frequency of operation Continuous
Duration 0.064 sec.
MIL operation 2 driving cycles
Sequence of operation None
TYPICAL ENABLING CONDITIONS
P2769: Range check (Low resistance)
The monitor will run whenever this DTC is not present. See page 05-9
Shift solenoid valve DSL ON
Solenoid current cut status Not cut
Battery voltage 8 V or more
Ignition switch ON
Starter OFF
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 813
DIAGNOSTICS - ELECTRONIC CONTROLLED AUTOMATIC 05-631
TRANSAXLE [ECT]
P2770: Range check (High resistance)
The monitor will run whenever this DTC is not present. See page 05-9
Shift solenoid valve DSL ON
Battery voltage 8 V or more
Ignition switch ON
Starter OFF
TYPICAL MALFUNCTION THRESHOLDS
P2769: Range check (Low resistance)
Shift solenoid valve DSL resistance 8 or less
P2770: Range check (High resistance)
Shift solenoid valve DSL resistance 100 k or more
COMPONENT OPERATING RANGE
Shift solenoid valve DSL Resistance: 11 to 13 at 20_C (68_F)
WIRING DIAGRAM
ECM
Electronically Controlled
Transmission Solenoid
10 11
SB Y-G
E1 E7 DSL
DSL
C93633
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 814
05-632 DIAGNOSTICS - ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT]
INSPECTION PROCEDURE
1 INSPECT TRANSMISSION WIRE(DSL)
(a) Disconnect the transmission wire connector from the
transaxle.
(b) Measure resistance between the terminal DSL and body
ground.
OK:
Resistance: 11 to 13 at 20 _C (68 _F)
DSL
G24201 G25185
NG Go to step 3
OK
2 CHECK HARNESS AND CONNECTOR(TRANSMISSION WIRE - ECM)
(a) Connect the transmission wire connector.
E8 E7 E6 E5 E4 (b) Disconnect the ECM connector.
(c) Measure the resistance between terminals DSL and E1.
OK:
Resistance: 11 to 13 at 20 _C (68 _F)
E1
DSL NG REPAIR OR REPLACE HARNESS OR
C82158 C91565 CONNECTOR(See page 01-37 )
OK
CHECK AND REPLACE ECM(See page 01-37 )
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 815
DIAGNOSTICS - ELECTRONIC CONTROLLED AUTOMATIC 05-633
TRANSAXLE [ECT]
3 INSPECT SHIFT SOLENOID VALVE(DSL)
(a) Remove the shift solenoid valve DSL.
(b) Measure the resistance between the terminal DSL of shift
solenoid valve and the solenoid body.
OK:
Resistance: 11 - 13 at 20 _C (68 _F)
(c) Connect positive (+) lead to the terminal of solenoid con-
nector, negative (-) lead to the solenoid body.
OK:
The solenoid valve makes an operating noise.
(-) (+)
C90646
NG REPLACE SHIFT SOLENOID VALVE(DSL)
OK
REPAIR OR REPLACE TRANSMISSION WIRE(See page 40-22 )
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 816
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