DESCRIPTION
Changing from 1st to 6th is performed by the ECM turning shift solenoid valves
SL1, SL2, SL3 and SL4 on and off. If an open or short circuit occurs in any of the
shift solenoid valves, the ECM controls the remaining normal shift solenoid valves
to allow the vehicle to be operated (See page ).
HINT:
The following table shows normal operation of the shift solenoid valves SL3 when the shift lever is in D.
Shift Solenoid Valve Operation:
Gear |
1st |
2nd |
3rd |
4th |
5th |
6th |
---|---|---|---|---|---|---|
Shift Solenoid Valve SL3 |
OFF |
ON |
OFF |
OFF |
OFF |
ON |
DTC No. |
DTC Detection Condition |
Trouble Area |
SAE |
---|---|---|---|
P079513 |
An open or short circuit (output signal duty is 0% or 100%) is detected by the ECM in the shift solenoid valve SL3 circuit while driving and shifting gears (SL3 output signal duty is more than 3% and less than 100% under normal conditions) (1 trip detection logic). |
|
P0798 |
MONITOR DESCRIPTION
This DTC indicates an open or short in the shift solenoid valve SL3 circuit. The ECM commands gear shifts by turning the shift solenoid valves on or off. When there is an open or short circuit in any of the shift solenoid valve circuits, the ECM detects the problem and illuminates the MIL and stores the DTC. The ECM also performs the fail-safe function and turns the other normal shift solenoid valves on or off. (In case of an open or short circuit, the ECM stops sending current to the circuit.)
While driving and shifting gears, if the ECM detects an open or short in the
shift solenoid valve SL3 circuit, the ECM determines there is a malfunction (See
page ).
MONITOR STRATEGY
Related DTCs |
P0798: Shift solenoid valve SL3/Range check |
Required sensors/Components |
Shift solenoid valve SL3 |
Frequency of operation |
Continuous |
Duration |
1 sec. |
MIL operation |
Immediately |
Sequence of operation |
None |
TYPICAL ENABLING CONDITIONS
All:
The monitor will run whenever the following DTCs are not stored |
None |
Solenoid current cut status |
Not cut |
Ignition switch |
ON |
Starter |
OFF |
Battery voltage |
12 V or higher |
Battery voltage |
10 V or higher, and below 12 V |
Target current |
Below 0.75 A |
Battery voltage |
8 V or higher |
Target current |
0.25 A or higher |
TYPICAL MALFUNCTION THRESHOLDS
One of the following conditions is met: Condition (A), (B) or (C)
Condition (A) and (B):
Output duty cycle |
More than 100% |
Output duty cycle |
Less than 0% |
COMPONENT OPERATING RANGE
Output duty cycle |
More than 3%, and less than 100% |
CONFIRMATION DRIVING PATTERN
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
HINT:
HINT:
[*1] : Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
Techstream Display |
Description |
---|---|
NORMAL |
|
ABNORMAL |
|
INCOMPLETE |
|
N/A |
|
HINT:
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE SL3) |
(a) Disconnect the E1 transmission wire connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
11 (SL3+) - 12 (SL3-) |
20°C (68°F) |
5.0 to 5.6 Ω |
11 (SL3+) - Body ground |
Always |
10 kΩ or higher |
12 (SL3-) - Body ground |
Always |
10 kΩ or higher |
*a |
Component without harness connected (Transmission Wire) |
NG | ![]() |
GO TO STEP 3 |
|
2. |
CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM) |
(a) Disconnect the ECM connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
E12-14 (SL3+) - E12-13 (SL3-) |
20°C (68°F) |
5.0 to 5.6 Ω |
E12-14 (SL3+) - Body ground |
Always |
10 kΩ or higher |
E12-13 (SL3-) - Body ground |
Always |
10 kΩ or higher |
*a |
Rear view of wire harness connector (to ECM) |
OK | ![]() |
REPLACE ECM |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
3. |
INSPECT SHIFT SOLENOID VALVE SL3 |
(a) Remove shift solenoid valve SL3 (See page
|
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
1 - 2 |
20°C (68°F) |
5.0 to 5.6 Ω |
(c) Apply 12 V battery voltage to the shift solenoid valve and check that the valve moves and makes an operating noise.
OK:
Measurement Condition |
Specified Condition |
---|---|
|
Valve moves and makes an operating noise |
*1 |
Shift Solenoid Valve SL3 |
OK | ![]() |
REPLACE TRANSMISSION WIRE |
NG | ![]() |
REPLACE SHIFT SOLENOID VALVE SL3 |
AUTO LSD system
The AUTO LSD system aids traction by using the traction control system to control
engine performance and braking when one of the rear wheels begins to spin.
The system should be used only when one of the rear wheels spinning occurs in
a ditch or rough surface.
■ System operation
The sys ...
Malfunction of ID-BOX Recognition (B278D)
DESCRIPTION
When the certification ECU (smart key ECU assembly) detects an input signal indicating
that the vehicle is equipped with an ID code box even though the ID code box is
not registered, the certification ECU (smart key ECU assembly) stores this DTC.
DTC Code
DTC ...
System Description
SYSTEM DESCRIPTION
1. CRUISE CONTROL SYSTEM
The cruise control system makes it possible to drive at a desired speed without
using the accelerator pedal. ECM controls the throttle opening angle based on signals
from switches and sensors.
The microcomputer which controls the cruise control syst ...