SSANGYONG Y200 Manual page 1227

5A-132 AUTOMATIC TRANSMISSION
Circuit Description
The solenoid 1 is used to control fluid flow acting on
the 1-2 shift valve. The solenoid 1 is a normally open
ON/ OFF type solenoid that is used in conjunction with
the solenoid 2 to allow four different shifting
combinations. Refer to Static Gear Status.
The solenoid is attached to the valve body within the
transmission. Voltage is supplied directly to the
solenoid through the Transmission Control Module
(TCM).
The DTC P1741 sets when the Solenoid 1 (S1) circuit
is shorted to ground. The solenoid 1's driver
Integrated Chip (IC) status indicates a faulty circuit.
Conditions for Setting the DTC
•
DTCs P1717 and P1718 are not set.
•
S1 is ON.
•
The solenoid 1'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 1 is always OFF.
•
TCM adopts a Limp Home Mode (LHM) operation.
Conditions for Clearing the DTC
•
The DTC will clear when the malfunction has not
occurred after ignition cycle.
DIAGNOSTIC TROUBLE CODE (DTC) P1741
SOLENOID 1 CIRCUIT SHORT
•
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 1 is turned OFF/
ON by a very small (4 millisecond) pulses. This
pulse is too short for the solenoid to react so the
transmis-sion 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.
•
Inspect the wiring for poor electrical connections
at the TCM and at the 10-way transmission
connector. Look for possible bent, backed out,
deformed or damaged terminals. Check for weak
terminal tension as well. Also check for chafed wires
that could short to bare metal or other wiring.
Inspect for broken wire in-side the insulation.
YAD5A070
SSANGYONG Y200