P2810

U660E AUTOMATIC TRANSAXLE: AUTOMATIC TRANSAXLE SYSTEM: P2810: Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4)
P2810 - Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4)

DESCRIPTION

Shifting gears from 1st through 5th is performed in combination with "ON" and "OFF" operation of the shift solenoid valves SL1, SL2, SL3 and SL4 which are controlled by the TCM. If an open or short circuit occurs in either of the shift solenoid valve, the TCM controls the remaining normal shift solenoid valves to allow the vehicle to be operated smoothly (Fail safe function).





MONITOR DESCRIPTION

The TCM commands gear shifts by turning the shift solenoid valves on or off. When there is an open or short circuit in any shift solenoid valve circuit, the TCM detects the problem and illuminates the MIL and stores the DTC. And the TCM 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 TCM stops sending current to the circuit.)

Fail-Safe Chart

MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS

ALL:





Condition (A)





Condition (B)





TYPICAL MALFUNCTION THRESHOLDS

Condition (A) and (B)





COMPONENT OPERATING RANGE





WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
Perform the universal trip to clear permanent DTCs Reading and Clearing Diagnostic Trouble Codes.

PROCEDURE

1. INSPECT TRANSMISSION WIRE (SL4 CIRCUIT)

(a) Remove the TCM from the transaxle.





(b) Measure the resistance according to the value(s) in the table below.

Standard resistance:





(c) Measure the resistance according to the value(s) in the table below.

Standard resistance:

Check for short






OK -- REPLACE TCM
NG -- Continue to next step.

2. INSPECT SHIFT SOLENOID VALVE SL4

(a) Remove the shift solenoid valve SL4.





(b) Measure the resistance according to the value(s) in the table below.

Standard resistance:





(c) Connect a positive (+) lead through a 21 W bulb to terminal 2 and a negative (-) lead to terminal 1 of the solenoid valve connector, then check the movement of the valve.

OK:

The solenoid makes an operating noise.

NG -- REPLACE SHIFT SOLENOID VALVE SL4

OK -- REPLACE TRANSMISSION WIRE