DESCRIPTION
Shift solenoid valve SL is turned on and off by signals from the TCM to control the hydraulic pressure acting on the lock-up relay valve, which then controls operation of the lock-up clutch.
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
P2769 |
TCM detects a short in the shift solenoid valve SL circuit when the shift solenoid valve SL is operated (2 trip detection logic). |
|
P2770 |
TCM detects an open in the shift solenoid valve SL circuit when the shift solenoid valve SL is not operated (2 trip detection logic). |
|
Fail-safe function:
If the TCM detects a malfunction, it turns shift solenoid valve SL off.
MONITOR DESCRIPTION
Based on the signals from the throttle position sensor, the air flow meter and the crankshaft position sensor, the TCM sends a signal to shift solenoid valve SL to regulate the hydraulic pressure and provide smoother torque converter engagement. Shift solenoid valve SL responds to commands from the TCM. The valve controls the lock-up relay valve to perform the torque-converter lock-up function. If the TCM detects an open or short circuit for shift solenoid valve SL, it will illuminate the MIL.
MONITOR STRATEGY
Related DTCs |
P2769: Shift solenoid valve SL/Range check (Low resistance) P2770: Shift solenoid valve SL/Range check (High resistance) |
Required sensors/Components |
Shift solenoid valve SL |
Frequency of operation |
Continuous |
Duration |
1 time |
MIL operation |
2 driving cycles |
Sequence of operation |
None |
TYPICAL ENABLING CONDITIONS
P2769: Range check (Low resistance):
The monitor will run whenever the following DTCs are not present |
None |
Command to solenoid |
ON |
Time after command to solenoid OFF to ON |
More than 0.008 sec. |
The monitor will run whenever the following DTCs are not present |
None |
Command to solenoid |
OFF |
Time after command to solenoid ON to OFF |
More than 0.008 sec. |
TYPICAL MALFUNCTION THRESHOLDS
P2769: Range check (Low resistance):
Intelligent power MOS diagnosis fail signals detected while the solenoid is operated |
Fail at solenoid resistance: 8 Ω or less |
Intelligent power MOS diagnosis fail signals detected while the solenoid is not operated |
Fail at solenoid resistance: 100 kΩ or more |
COMPONENT OPERATING RANGE
Shift solenoid valve SL |
Resistance: 11 to 15 Ω at 20°C (68°F) |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Perform the universal trip to clear permanent DTCs (See page
).
PROCEDURE
1. |
INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE SL) |
(a) Remove the TCM from the transaxle. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
6 (SL) - Body ground |
20°C (68°F) |
11 to 15 Ω |
OK | ![]() |
REPLACE TCM |
|
2. |
INSPECT SHIFT SOLENOID VALVE SL |
(a) Remove shift solenoid valve SL. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
Solenoid Connector (SL) - Solenoid Body (SL) |
20°C (68°F) |
11 to 15 Ω |
*1 |
Shift Solenoid Valve SL |
OK | ![]() |
REPLACE TRANSMISSION WIRE |
NG | ![]() |
REPLACE SHIFT SOLENOID VALVE SL |
Inspection
INSPECTION
PROCEDURE
1. INSPECT THROTTLE BODY ASSEMBLY
Text in Illustration
*1
Component without harness connected
(Throttle Body)
(a) Check that the throttle valve opens and closes smoothly.
(b) Check that there is no ...
No Communication in Immobiliser System (B2796,B2798)
DESCRIPTION
These DTCs are stored if a key that does not have a transponder chip is inserted
into the ignition key cylinder or if communication between the key and the transponder
key ECU assembly is impossible.
DTC No.
DTC Detectio ...
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT DRIVER SIDE SEAT BELT WARNING
(a) Turn the ignition switch to ON.
(b) When the driver side seat belt is not fastened, check that the driver side
seat belt warning light on the combination meter assembly blinks.
...