Pinpoint Test A : Shift Solenoid A (SSA): Notes
Power is routed through the transmission solenoid power control relay (inside the PCM) to all transmission solenoids. If the power circuit to the transmission solenoids or the transmission solenoid power control relay fails open, all solenoids are failed electrically off. Check for open, short to ground or the transmission connector disconnected. The transmission solenoid power control relay disables power to the transmission solenoids when certain transmission DTCs are set.
- Carry out KOEO and KOER procedures.
- Retrieve and record all DTCs.
- Repair all non-transmission DTCs first.
- Repair all transmission DTCs second.
- Clear all CMDTCs and attempt to repeat them.
- Repair all CMDTCs.
- If only pass codes are obtained, REFER to: Diagnosis By Symptom .
Shift Solenoid A (SSA)
Refer to Transmission Controls - 6F50/6F55 for schematic and connector information.
Normal Operation
The PCM applies and releases the various clutches in the transmission by actuating the shift solenoids in the solenoid body. SSA is a Variable Force Solenoid (VFS).
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| P0750 | SSA | Open circuit in the solenoid or wire harness. |
| P0753 | SSA Electrical | Open circuit in the solenoid or wire harness. |
| P0754 | SSA Intermittent | Intermittent circuit in the solenoid or wire harness open, shorted to ground or shorted to power. |
| P0973 | SSA Control Circuit Low | Short to ground in the solenoid or wire harness. |
| P0974 | SSA Control Circuit High | Open circuit or short to power in the solenoid or wire harness. |
Possible Sources
- Connectors damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals
- SSA
- Transmission internal wiring harness frame
- PCM