Pinpoint Test E : PCA (Pressure Control Solenoid A) (Line Pressure) Solenoid

Pinpoint Tests - OSC Equipped Vehicle

PINPOINT TEST E : PCA (Pressure Control Solenoid A) (LINE PRESSURE) SOLENOID

NOTE: This test should only be used if DTCs P0748, P0960, P0962 or P0963 are present.

NOTE: Read and record all DTCs.

NOTE: Refer to the Transmission Vehicle Harness Connector illustration within the Transmission Connector Layouts Transmission Connector Layouts procedure.

NOTE: Refer to the Transmission Internal Harness Connector illustration within the Transmission Connector Layouts Transmission Connector Layouts procedure.

E1 CHECK TRANSMISSION VEHICLE HARNESS FOR CONTINUITY

- Ignition OFF.

- Disconnect: PCM C175T.

- Disconnect: Transmission Vehicle Harness C1385.

- Check to make sure the transmission vehicle harness C1385 is fully seated, terminals are fully engaged in the connector and are in good condition before proceeding.

- Measure the resistance between PCM C175T and C1385 using the following chart.

Transmission Connector Circuit PCM C1385-10 CET50 (WH/OG) C175T-42 C1385-7 CET25 (BU/GN) C175T-50






Is resistance less than 5 ohms?

Yes
GO to E2.

No
REPAIR the circuit that is open. CLEAR the DTCs. TEST the system for normal operation.

E2 CHECK TRANSMISSION VEHICLE HARNESS FOR SHORT TO GROUND

- Measure the resistance between PCM C175T, harness side and ground using the following chart.

PCM Circuit Ground C175T-42 CET50 (WH/OG) Ground C175T-50 CET25 (BU/GN) Ground






Is resistance greater than 10,000 ohms?

Yes
GO to E3.

No
REPAIR the shorted circuit. CLEAR the DTCs. TEST the system for normal operation.

E3 CHECK THE TRANSMISSION INTERNAL HARNESS FOR AN OPEN

- Drain the transmission fluid.

- Remove the transmission fluid pan.

- Disconnect: Pressure Control Solenoid A (PCA).

- Measure the resistance between transmission internal harness C1385 and the PCA (Pressure Control Solenoid A) solenoid using the following chart.

Transmission Connector Circuit PCA (Pressure Control Solenoid A) Solenoid C1385-10 Signal 2 C1385-7 Power 1






Is resistance less than 5 ohms?

Yes
GO to E4.

No
INSTALL a new transmission harness. CLEAR the DTCs. TEST the system for normal operation.

E4 CHECK THE TRANSMISSION INTERNAL HARNESS FOR A SHORT TO GROUND

- Measure the resistance between transmission internal harness C1385, component side and ground using the following chart.

Transmission Connector Circuit Ground C1385-10 Signal Ground C1385-7 Ignition voltage Ground






Is resistance greater than 10,000 ohms?

Yes
GO to E5.

No
INSTALL a new transmission harness. CLEAR the DTCs. TEST the system for normal operation.

E5 CHECK THE PCA (Pressure Control Solenoid A) RESISTANCE

- Measure the resistance between terminals 1 and 2 at the PCA (Pressure Control Solenoid A).





Is resistance between 4.88-5.48 ohms?

Yes
INSTALL a new PCM.

No
INSTALL a new PCA (Pressure Control Solenoid A). CLEAR the DTCs. TEST the system for normal operation.