Automatic Transmission - 6F50 and 6F55
Diagnostic Routine N
Diagnostic Overview
P0770, P0773
Refer to Wiring Diagram Set 29 for schematic and connector information Electrical Diagrams.
Normal Operation and Fault Conditions
SSE (Shift Solenoid E) is an On/Off solenoid. The PCM (Powertrain Control Module) controls current flow through the solenoid ground input.
DTC Fault Trigger Conditions
Pinpoint Test
NOTE: If the scan tool is unable to communicate with the PCM (Powertrain Control Module) or access the transmission PIDs (Parameter Identifications), REFER to Computers and Control Systems Information.
1. Read and record all DTCs (Diagnostic Trouble Codes)
1. Install the scan tool and record all DTCs (Diagnostic Trouble Codes).
Were DTCs (Diagnostic Trouble Codes) P0770 and/or P0773 set?
2. Check the SSE (Shift Solenoid E) circuit for an open
1. Ignition OFF.
2. Disconnect the transaxle vehicle harness C168.
3. Disconnect the PCM (Powertrain Control Module) C175T.
4. Inspect the connectors for damaged or pushed out terminals, corrosion, loose wires and missing or damaged seals.
5. Measure the resistance of circuit CET19 (VT/GY) from the transaxle vehicle harness C168-1 to the PCM (Powertrain Control Module) C175T-11.
Is the resistance less than 5 ohms?
3. Check the SSE (Shift Solenoid E) circuit for a short to ground
1. Check the SSE (Shift Solenoid E) circuit for a short to ground
Is the resistance greater than 10,000 ohms?
4. Check the SSE (Shift Solenoid E) circuit for a short to voltage
1. Ignition ON.
2. Measure for voltage on circuit CET19 (VT/GY) from the transaxle vehicle harness C168-1 to ground.
Is any voltage present?
5. Check the SSE (Shift Solenoid E) for a short to ground
1. Measure the resistance between the transaxle internal harness connector, terminal 1 and ground.
Is the resistance less than 5 ohms?
6. Check the SSE (Shift Solenoid E) for an open
1. Measure the resistance between the transaxle internal harness, terminal 1 and terminal 15 component side.
Is the resistance between 20 and 34 ohms?
