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Pinpoint Test A: Transmission Control Solenoids




Pinpoint Tests - OSC Equipped Vehicle

PINPOINT TEST A : TRANSMISSION CONTROL SOLENOIDS

NOTE: Refer to the transmission connector illustrations and solenoid body leadframe internal wiring diagram Transaxle Connector Layouts .

A1 ELECTRONIC DIAGNOSTICS

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

- Connect the scan tool.

- Carry out the KOEO (Key ON Engine OFF) until continuous DTCs have been displayed.

- Enter the Output Test Mode.

Does vehicle enter Output Test Mode?

Yes
GO to A2.

No
If vehicle does not enter Output Test Mode, REFER to Computers and Control Systems Information.

A2 CHECK THE SOLENOID CIRCUIT FOR AN OPEN

- Ignition OFF.

- Disconnect: C1520A.

- Use a mirror to inspect both ends of the connector for damage or pushed-out pins, corrosion, loose wires and missing or damaged seals.

- Disconnect: TCM (Transmission Control Module) C1750.

- Use a mirror to inspect both ends of the connector for damage or pushed out pins, corrosion, loose wires and missing or damaged seals.

- Measure the resistance of the suspect solenoid circuit between TCM (Transmission Control Module) C1750 and C1520A using the following chart.

Shift Solenoid Circuit Circuit SSA (Shift Solenoid A) CET05 (BU/GN) C1520A-8 TCM (Transmission Control Module) C1750-42 SSB (Shift Solenoid B) CET06 (GN/BN) C1520A-9 TCM (Transmission Control Module) C1750-7 SSC (Shift Solenoid C) CET07 (GY/OG) C1520A-4 TCM (Transmission Control Module) C1750-6 SSD (Shift Solenoid D) CET08 (BN/WH) C1520A-10 TCM (Transmission Control Module) C1750-43 SSE (Shift Solenoid E) CET18 (GY/YE) C1520A-7 TCM (Transmission Control Module) C1750-11 LPC (Line Pressure Control) CET09 (YE/VT) C1520A-3 TCM (Transmission Control Module) C1750-4 TCC (Torque Converter Clutch) CET10 (BU/GY) C1520A-6 TCM (Transmission Control Module) C1750-3

Is the resistance less than 5 ohms?

Yes
GO to A3.

No
REPAIR the circuit(s). RECONNECT all components. TEST the system for normal operation.

A3 CHECK THE SOLENOID CIRCUIT FOR A SHORT TO GROUND

- Measure the resistance between C1520A, harness side and ground using the following chart.

Solenoid Circuit Connector Ground SSA (Shift Solenoid A) CET05 (BU/GN) C1520A-8 Ground SSB (Shift Solenoid B) CET06 (GN/BN) C1520A-9 Ground SSC (Shift Solenoid C) CET07 (GY/OG) C1520A-4 Ground SSD (Shift Solenoid D) CET08 (BN/WH) C1520A-10 Ground SSE (Shift Solenoid E) CET18 (GY/YE) C1520A-7 Ground LPC (Line Pressure Control) CET09 (YE/VT) C1520A-3 Ground TCC (Torque Converter Clutch) CET10 (BU/GY) C1520A-6 Ground

Is the resistance greater than 10,000 ohms?

Yes
GO to A4.

No
REPAIR the circuit(s). RECONNECT all components. TEST the system for normal operation.

A4 CHECK THE SOLENOID CIRCUIT FOR A SHORT TO VOLTAGE

- Measure the voltage between C1520A, harness side and ground using the following chart.

Solenoid Circuit Connector Ground SSA (Shift Solenoid A) CET05 (BU/GN) C1520A-8 Ground SSB (Shift Solenoid B) CET06 (GN/BN) C1520A-9 Ground SSC (Shift Solenoid C) CET07 (GY/OG) C1520A-4 Ground SSD (Shift Solenoid D) CET08 (BN/WH) C1520A-10 Ground SSE (Shift Solenoid E) CET18 (GY/YE) C1520A-7 Ground LPC (Line Pressure Control) CET09 (YE/VT) C1520A-3 Ground TCC (Torque Converter Clutch) CET10 (BU/GY) C1520A-6 Ground

Is any voltage present?

Yes
REPAIR the circuit(s). RECONNECT all components. TEST the system for normal operation.

No
GO to A5.

A5 CHECK THE RESISTANCE OF THE SOLENOID FIELD CIRCUIT

- Measure the resistance between C1520A-5, and the suspect solenoid pin, component side and compare the value to the specifications in the table below.

Shift Solenoid Solenoid Body Leadframe Pin C1520A-5 (Component Side) SSA (Shift Solenoid A) C1520A-8 C1520A-5 (Component Side) SSB (Shift Solenoid B) C1520A-9 C1520A-5 (Component Side) SSC (Shift Solenoid C) C1520A-4 C1520A-5 (Component Side) SSD (Shift Solenoid D) C1520A-10 C1520A-5 (Component Side) SSE (Shift Solenoid E) C1520A-7 C1520A-5 (Component Side) LPC (Line Pressure Control) C1520A-3 C1520A-5 (Component Side) TCC (Torque Converter Clutch) C1520A-6 C1520A-5 (Component Side)

Solenoid Resistance Values: SSA (Shift Solenoid A), SSB (Shift Solenoid B), SSC (Shift Solenoid C), SSD (Shift Solenoid D), TCC (Torque Converter Clutch) and LPC (Line Pressure Control)

Temperature Resistance (ohms)° C° F -20 to -10 -4 to 14 3.24-5.13 -10 to 0 14-32 3.43-5.32 0-10 32-50 3.62-5.51 10-20 50-68 3.81-5.70 20-30 68-86 4.00-5.89 30-40 86-104 4.19-6.08 40-50 104-122 4.38-6.27 50-60 122-140 4.57-6.46 60-70 140-158 4.76-6.65 70-80 158-176 4.95-6.83 80-90 176-194 5.13-7.02 90-100 194-212 5.32-7.21

Solenoid Resistance Values: SSE (Shift Solenoid E) (ON/OFF)

Temperature Resistance (ohms)° C° F -20 to -10 -4 to 14 15.45-24.35 -10 to 0 14-32 16.35-25.25 0-10 32-50 17.25-26.15 10-20 50-68 18.15-27.05 20-30 68-86 19.05-27.95 30-40 86-104 19.95-28.85 40-50 104-122 20.85-29.75 50-60 122-140 21.75-30.65 60-70 140-158 22.65-31.54 70-80 158-176 23.54-32.44 80-90 176-194 24.44-33.34 90-100 194-212 25.34-34.24

Is the resistance within specifications?

Yes
INSTALL a new TCM (Transmission Control Module). REFER to Transmission Control Module (TCM) . RECONNECT all components. TEST the system for normal operation.

No
REMOVE the main control cover. REFER to Main Control Cover . INSPECT the solenoid body for foreign material such as metal shavings on the exposed metal contacts or other components. CLEAN the solenoid body and RECHECK the resistance values. If the resistance values are still out of specification, GO to A6. INSTALL a new solenoid(s). REFER to Solenoids . RECONNECT all components. TEST the system for normal operation.

A6 CHECK THE SOLENOID BODY LEADFRAME FOR AN OPEN

- Remove the solenoid body leadframe. Refer to Solenoid Body Leadframe .

- Measure the resistance between C1520A, component side and the corresponding solenoid pins using the following chart.

Solenoid Body Leadframe Main Connector Pin Number Circuit Function 3 LPC (Line Pressure Control) solenoid control 4 SSC (Shift Solenoid C) control 5 Solenoid power supply 6 TCC (Torque Converter Clutch) solenoid control 7 SSE (Shift Solenoid E) control 8 SSA (Shift Solenoid A) control 9 SSB (Shift Solenoid B) control 10 SSD (Shift Solenoid D) control






Is the resistance less than 5 ohms?

Yes
INSTALL a new solenoid(s). REFER to Solenoids . RECONNECT all components. TEST the system for normal operation.

No
INSTALL a new solenoid body leadframe. REFER to Solenoid Body Leadframe .
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