Pinpoint Test A: Transaxle Control Solenoids
WARNING: This page is about a different car, the 2010 Mercury Milan and 2010 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Refer to the transaxle connector illustrations and solenoid body leadframe internal wiring diagram TRANSAXLE CONNECTOR LAYOUTS .
- A1 ELECTRONIC DIAGNOSTICS
- Check to make sure the transaxle harness connector is fully seated, terminals are engaged in connector and in good condition before proceeding.
- Connect the scan tool.
- Carry out the Key ON Engine OFF (KOEO) until continuous DTCs have been displayed.
- Enter the Output Test Mode.
- Select the mode ALL ON. Push START to turn outputs ON. Push STOP to turn outputs OFF.
- Does vehicle enter Output Test Mode?
- Yes : GO to A2 .
- No : PRESS START. If vehicle does not enter Output Test Mode, REFER to the INTRODUCTION - GASOLINE MODELS .
- A2 CHECK THE SOLENOID CIRCUIT FOR AN OPEN
- Ignition OFF.
- Disconnect: Transaxle Vehicle Harness C168a.
- 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: PCM Transaxle Harness C175T.
- 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 the PCM transaxle harness C175T and transaxle vehicle harness C168a using the following chart.SHIFT SOLENOID REFERENCE
Shift Solenoid Transaxle Vehicle Harness PCM Shift Solenoid A (SSA) CET05 (BU/GN) C168a-8 C175T-45 Shift Solenoid B (SSB) CET06 (GN/BN) C168a-9 C175T-43 Shift Solenoid C (SSC) CET07 (GY/OG) C168a-4 C175T-44 Shift Solenoid D (SSD) CET08 (BN/WH) C168a-10 C175T-10 Shift Solenoid E (SSE) CET18 (GY/YE) C168a-7 C175T-11 Line Pressure Control (LPC) CET09 (YE/VT) C168a-3 C175T-34 Torque Converter Clutch (TCC) CET10 (BU/GY) C168a-6 C175T-46 - Is the resistance less than 5 ohms?
- Yes : GO to A3 .
- No : REPAIR the circuit(s) for an open. RECONNECT all components. TEST the system for normal operation.
- A3 CHECK THE SOLENOID CIRCUIT FOR A SHORT TO GROUND
- Measure the resistance between the transaxle vehicle harness C168a, harness side and ground using the following chart.SHIFT SOLENOID REFERENCE
Shift Solenoid Transaxle Vehicle Harness Ground Shift Solenoid A (SSA) CET05 (BU/GN) C168a-8 Ground Shift Solenoid B (SSB) CET06 (GN/BN) C168a-9 Ground Shift Solenoid C (SSC) CET07 (GY/OG) C168a-4 Ground Shift Solenoid D (SSD) CET08 (BN/WH) C168a-10 Ground Shift Solenoid E (SSE) CET18 (GY/YE) C168a-7 Ground Line Pressure Control (LPC) CET09 (YE/VT) C168a-3 Ground Torque Converter Clutch (TCC) CET10 (BU/GY) C168a-6 Ground - Is the resistance greater than 10,000 ohms?
- Yes : GO to A4 .
- No : REPAIR the circuit(s) for a short to ground. RECONNECT all components. TEST the system for normal operation.
- Measure the resistance between the transaxle vehicle harness C168a, harness side and ground using the following chart.
- A4 CHECK THE SOLENOID CIRCUIT FOR A SHORT TO POWER
- Measure the voltage between the transaxle vehicle harness electrical C168a, harness side and ground using the following chart.SHIFT SOLENOID REFERENCE
Shift Solenoid Transaxle Vehicle Harness Ground Shift Solenoid A (SSA) CET05 (BU/GN) C168a-8 Ground Shift Solenoid B (SSB) CET06 (GN/BN) C168a-9 Ground Shift Solenoid C (SSC) CET07 (GY/OG) C168a-4 Ground Shift Solenoid D (SSD) CET08 (BN/WH) C168a-10 Ground Shift Solenoid E (SSE) CET18 (GY/YE) C168a-7 Ground Line Pressure Control (LPC) CET09 (YE/VT) C168a-3 Ground Torque Converter Clutch (TCC) CET10 (BU/GY) C168a-6 Ground - Is any voltage present?
- Yes
: REPAIR the circuit(s) for a short to power.
RECONNECT all components. TEST the system for normal operation.
- No : GO to A5 .
- Measure the voltage between the transaxle vehicle harness electrical C168a, harness side and ground using the following chart.
- A5 CHECK THE RESISTANCE OF THE SOLENOID FIELD CIRCUIT
- Measure the resistance between the transaxle solenoid body leadframe main electrical connector C168a pin 5, component side and the suspect solenoid pin, component side and compare the value to the specifications in the table below.SHIFT SOLENOID REFERENCE
Shift Solenoid Solenoid Body Leadframe Pin C168 pin 5 (Component Side) Shift Solenoid A (SSA) C168a pin 8 C168 pin 5 Shift Solenoid B (SSB) C168a pin 9 C168 pin 5 Shift Solenoid C (SSC) C168a pin 4 C168 pin 5 Shift Solenoid D (SSD) C168a pin 10 C168 pin 5 Shift Solenoid E (SSE) C168a pin 7 C168 pin 5 Line Pressure Control (LPC) C168a pin 3 C168 pin 5 Torque Converter Clutch (TCC) C168a pin 6 C168 pin 5 Solenoid Resistance Values: SHIFT SOLENOID A (SSA), SHIFT SOLENOID B (SSB), SHIFT SOLENOID C (SSC), SHIFT SOLENOID D (SSD), TORQUE CONVERTER CLUTCH (TCC) and LINE PRESSURE CONTROL (LPC)
TEMPERATURE AND RESISTANCE CHARTTemperature 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: SHIFT SOLENOID E (SSE) (ON/OFF)
TEMPERATURE AND RESISTANCE CHARTTemperature 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 PCM. REFER to ELECTRONIC ENGINE CONTROLS - 2.5L or ELECTRONIC ENGINE CONTROLS - 3.0L (4V) . 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. CLEAR 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.
- Measure the resistance between the transaxle solenoid body leadframe main electrical connector C168a pin 5, component side and the suspect solenoid pin, component side and compare the value to the specifications in the table below.
- A6 CHECK THE SOLENOID BODY LEADFRAME FOR AN OPEN
- Remove the solenoid body leadframe. Refer to SOLENOID BODY LEADFRAME .
- Measure the resistance between the solenoid body leadframe main electrical connector C168, component side and the corresponding solenoid pins using the following chart.SOLENOID BODY LEADFRAME MAIN CONNECTOR PIN NUMBER REFERENCE
Solenoid Body Leadframe Main Connector Pin Number Circuit Function 3 Line Pressure Control (LPC) solenoid control circuit 4 Shift Solenoid C (SSC) control circuit 5 Solenoid power supply circuit 6 Torque Converter Clutch (TCC) solenoid control circuit 7 Shift Solenoid E (SSE) control circuit 8 Shift Solenoid A (SSA) control circuit 9 Shift Solenoid B (SSB) control circuit 10 Shift Solenoid D (SSD) control circuit - 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 .