Toyota Sequoia (2005). Manual — part 221
–
DIAGNOSTICS
AUTOMATIC TRANSMISSION
DI–679
873
4
Check torque converter clutch (See page
OK:
The torque converter clutch operates normally.
NG
Replace the torque converter clutch
(See page
OK
Repair or replace transmission (See page
Current flow to solenoid
Lock–up
Operation
Pressure
BE4056
D00160
1 cycle
ON
OFF
DI–680
–
DIAGNOSTICS
AUTOMATIC TRANSMISSION
874
DTC
P2759
Torque Converter Clutch Pressure Control Solenoid
Control Circuit Electrical(Shift Solenoid Valve SLU)
CIRCUIT DESCRIPTION
The amount of current flow to the solenoid is controlled by the
(*) duty ratio of the ECM output signal. The higher the duty ratio
becomes, the higher the lock–up hydraulic pressure becomes
during the lock–up operation.
(*) Duty Ratio
The duty ratio is the ratio of the period of continuity in one cycle.
For example, if A is the period of continuity in one cycle, and B
is the period of non–continuity, then
Duty Ratio = A/(A + B) x 100 (%)
DTC No.
DTC detection condition
Trouble Area
P2759
Open or short is detected in shift solenoid valve SLU circuit for
1 second or more while driving (1–trip detection logic).
Open or short in shift solenoid valve SLU circuit
Shift solenoid valve SLU
ECM
MONITOR DESCRIPTION
When an open or short in a shift solenoid valve (SLU) circuit is detected, the ECM determines there is a mal-
function. The ECM will turn on the MIL and store this DTC.
MONITOR STRATEGY
Related DTCs
P2759
Shift solenoid valve SLU/Range check
Required sensors/Components
Shift solenoid valve SLU
Frequency of operation
Continuous
Duration
1 sec.
MIL operation
Immediate
Sequence of operation
None
DIDJP–01
D14178
Electronically Controlled
Transmission Solenoid
E7
ECM
E7
P–L
L–W
15
14
SLU+
SLU–
13
LG
BR
SLU–
SLU+
E1
+B
5
–
DIAGNOSTICS
AUTOMATIC TRANSMISSION
DI–681
875
TYPICAL ENABLING CONDITIONS
It
Specification
Item
Minimum
Maximum
The monitor will run whenever this DTC is
not present.
See page
Solenoid current cut status
Not cut
CPU commanded duty
19% or more
–
Battery voltage
11 V or more
–
Ignition switch
ON
Starter
OFF
TYPICAL MALFUNCTION THRESHOLDS
Detection criteria
Threshold
Solenoid status from IC
Fail (Open or short)
COMPONENT OPERATING RANGE
Parameter
Standard value
Output signal duty
Less than 100%
WIRING DIAGRAM
1
15
2
3
4
5
6
7
8
9
10
11
12
13
14
D11994
Transmission Wire Side:
(Connector Front View):
E1
SLU–
SLU+
DI–682
–
DIAGNOSTICS
AUTOMATIC TRANSMISSION
876
INSPECTION PROCEDURE
1
Inspect transmission wire.
PREPARATION:
Disconnect the transmission wire connector.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:
Tester Connection
Specified Condition
20
C (68
F)
13 (SLU+) – 5 (SLU–)
5.0 to 5.6
Ω
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:
Tester Connection
Specified Condition
13 (SLU+) – Body ground
10 k
Ω
or higher
5 (SLU–) – Body ground
↑
NG
Go to step 3.
OK
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст