P2719

TX6A AUTOMATIC TRANSMISSION / TRANSAXLE: AUTOMATIC TRANSMISSION SYSTEM: P2719, P2720, P2721; Pressure Control Solenoid "D" Circuit Performance (SLT Solenoid); 2013 MY FR-S [03/2012 -]
P2719 - Pressure Control Solenoid "D" Circuit Performance (SLT Solenoid)
P2720 - Pressure Control Solenoid "D" Control Circuit Low
P2721 - Pressure Control Solenoid "D" Control Circuit High

DESCRIPTION

The shift solenoid valve SLT is controlled by the duty ratio as determined in advance by the transmission control computer, based upon signals from the accelerator position sensor, transmission revolution sensor (NT) and transmission revolution sensor (SP2). In this way, the line pressure is adjusted to match the throttle valve opening angle and engine output. The TCM uses the revolution signals from the transmission revolution sensor (NT) and transmission revolution sensor (SP2) to detect clutch and other slipping.





MONITOR DESCRIPTION

When an open or short in the shift solenoid valve SLT circuit is detected, the TCM interprets this as a fault. The TCM will turn on the MIL and store the DTC.

MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS

P2719: Line Pressure Linear Solenoid (Feedback Stuck)

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P2720: Line Pressure Linear Solenoid (GND Short/Open)

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P2721: Line Pressure Linear Solenoid (Battery Short)

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TYPICAL MALFUNCTION THRESHOLDS

P2719: Line Pressure Linear Solenoid (Feedback Stuck)

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P2720: Line Pressure Linear Solenoid (GND Short/Open)

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P2721: Line Pressure Linear Solenoid (Battery Short)

*





WIRING DIAGRAM





INSPECTION PROCEDURE

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

PROCEDURE

1. INSPECT TRANSMISSION WIRE (SLT+)

(a) Disconnect the A18 TCM connector.

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

Standard resistance:





(c) Disconnect the A18 TCM connector.

NG -- CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - TCM)
OK -- Continue to next step.

2. REPLACE TCM

(a) Replace the TCM Removal.

NEXT -- PERFORM THE RESET MEMORY Programming and Relearning

3. CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - TCM)

(a) Disconnect the A18 TCM connector.

(b) Disconnect the L4 transmission wire connector.

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

Standard resistance:





(d) Measure the voltage according to the value(s) in the table below.

Standard voltage:





(e) Connect the A18 TCM connector.

(f) Connect the L4 transmission wire connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

4. INSPECT SHIFT SOLENOID VALVE SLT (TRANSMISSION VALVE BODY ASSEMBLY) P0894

NG -- REPLACE TRANSMISSION VALVE BODY ASSEMBLY Removal

OK -- REPAIR OR REPLACE TRANSMISSION WIRE Removal