SSANGYONG Y200 Manual page 1239

5A-144 AUTOMATIC TRANSMISSION
Circuit Description
The solenoid 4 is a normally open ON/OFF type sole-
noid that is used in conjunction with the solenoid 3 to
control the shift quality and sequencing.
The solenoid 4 switches the band regulator valve OFF
or ON and is attached to the valve body within the
transmission.
Voltage is supplied directly to the solenoid through
the Transmission Control Module (TCM).
The DTC P1744 sets when the Solenoid 4 (S4) circuit
is shorted to ground. The solenoid 4's driver
Integrated Chip (IC) status indicates a faulty circuit.
Conditions for Setting the DTC
•
DTCs P1717 and P1718 are not set.
•
S4 is ON.
•
The solenoid 4's driver Integrated Chip (IC) status
indicates a faulty circuit. This condition must be
continuously present for 60 milliseconds.
Action Taken When the DTC Sets
•
The solenoid 4 is always OFF.
The 1 → 2, 1 → 4, 2 → 3, 2 → 4, 3 → 1, 3 → 2 (all
•
including manual), 3 → 4, 4 → 1 and 4 → 3 shift
quality is degraded.
DIAGNOSTIC TROUBLE CODE (DTC) P1744
SOLENOID 4 CIRCUIT SHORT
Conditions for Clearing the DTC
•
The DTC will clear when the malfunction has not
occurred after ignition cycle.
•
A history DTC will clear after 40 TCM power-up
cycles with a warm transmission (>50 ° C) and
without a fault.
•
History DTCs can be cleared by using a scan tool.
Diagnostic Aids
•
During the TCM's testing, solenoid 4 is turned OFF/
ON by a very small (4 millisecond) pulses. This
pulse is too short for the solenoid to react so the
transmission operation is not affected.
•
The solenoid feedback voltage is measured before
the (4 millisecond) pulse and again during the
pulse. If the difference is outside the acceptable
limits the relevant fault is recorded.
•
Typical causes would be a short circuit to ground
in the wiring to or within the solenoid.
•
If several faults of solenoids are present, check
the wiring or connectors that are common to the
selected solenoids, especially the earth
connections.
YAD5A070
SSANGYONG Y200