2001 TOYOTA HIGHLANDER Service Repair Manual

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Page 1937 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual G31770
ECM
SLT+
SLT- E8 13
12 Y-R
B-Y E10 Electronically Controlled
Transmission Solenoid
E8 O
G2
7 SLT+
SLT-+B
D25234
Transmission Wire Side:
(Connector Front View):
E10
SLT-SLT+
- DIAGNOSTICSE

Page 1938 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual C82158C91565
SLT+ SLT-
E7E8E9E6E5
ECM:
05-976- DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E/U140F)
1166 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
2 CHECK HARNESS A

Page 1939 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual D25466
12
12
(+)
(-)
Shift Solenoid Valve SLT:
- DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E/U140F)05-977
1167 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
3 INSPECT

Page 1940 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual 05-978- DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E/U140F)
1168 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
DTC P2769 TORQUE CONVERTER CLUTCH SOLENOID
CIRCUIT LOW (

05-978- DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E/U140F)
1168 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
DTC P2769 TORQUE CONVERTER CLUTCH SOLENOID
CIRCUIT LOW (SHIFT SOLENOID VALVE
DSL)
DTC P2770 TORQUE CONVERTER CLUTCH SOLENOID
CIRCUIT HIGH (SHIFT SOLENOID VALVE
DSL)
CIRCUIT DESCRIPTION
The shift solenoid valve DSL is turned ºONº and ºOFFº by signals from the ECM in order to control the hydrau-
lic pressure operation, the lock-up relay valve, which then the controls operation of the lock-up clutch.
DTC No.DTC Detection ConditionTrouble Area
P2769ECM detects short in solenoid valve DSL circuit (0.1 sec.)
when solenoid valve DSL is operated (2-trip detection logic)Short in shift solenoid valve DSL circuit
Shift solenoid valve DSL
ECM
P2770
ECM detects open in solenoid valve DSL circuit (0.1 sec.)
when solenoid valve DSL is not operated (2-trip detection
logic)Open in shift solenoid valve DSL circuit
Shift solenoid valve DSL
ECM
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 ºlock-upº 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
Related DTCsP2769: Shift solenoid valve DSL/Range check (Low resistance)
P2770: Shift solenoid valve DSL/Range check (High resistance)
Required sensors/ComponentsShift solenoid valve DSL
Frequency of operationContinuous
Duration0.064 sec.
MIL operation2 driving cycles
Sequence of operationNone
TYPICAL ENABLING CONDITIONS
P2769: Range check (Low resistance)
The monitor will run whenever this DTC is not present.See page 05-895
Solenoid current cut statusNot cut
Shift solenoid valve DSLON
Battery voltage8 V or more
Ignition switchON
StarterOFF
0527R-37

Page 1941 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual G31165
E10
Electronically Controlled
Transmission Solenoid
E8DSLECM
9
G3
DSLY-G+B
CPU
D25234
Transmission Wire Side:
(Connector Front View):
E10
DSL
- DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSA

Page 1942 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual C82158C91565
DSL
E7E8E9E6E5
ECM:
G28385
(+) (-) Shift Solenoid Valve DSL:
05-980- DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E/U140F)
1170 Author: Date:
2005 HIGHLANDER REPAIR M

Page 1943 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual - DIAGNOSTICSCRUISE CONTROL SYSTEM
05-2155
2345 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
DTC P0571/52 STOP LIGHT SWITCH CIRCUIT
MALFUNCTION
CIRCUIT DESCRIPTION
When the brake pedal is

Page 1944 of 2572

TOYOTA HIGHLANDER 2001 Service Repair Manual I39315
S15
STOP LAMP SWITCH
Passenger Side J/B
Instrument Panel J/B
Passenger Side J/B
F7
FL BLOCKI15
IGNITION SW J3 *1
J6 *2
J/CECM
ST1-
STP
STOP
IGN
IG2 AM2
ALT AM2
FL MAIN
BATTERYWL-YY
GR W Y PP
B

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