Pinpoint Test A : Shift Solenoids
WARNING: This page is about a different car, the 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
- Refer to TRANSMISSION CONTROLS - 10R80
for schematic and connector information.
Normal Operation and Fault Conditions
The 10R80 transmission uses 6 linear force shift solenoids (A, B, C, D, E, F) called Casting Integrated Direct Acting Solenoids (CIDAS). Unlike previous shift solenoids, they are mechanical in nature meaning no transmission fluid passes through them. They use an armature pin assembly that moves a control valve in the main control valve body to control and apply hydraulic fluid pressure. Each clutch (A, B, C, D, E, F) has a corresponding shift solenoid (A, B, C, D, E, F) that is directly proportional in that zero current equals zero pressure and maximum current equals maximum pressure. Since there is no pressure with zero current, none of the clutch packs are able to engage if the power is interrupted to the shift solenoids.
DTC Fault Trigger Conditions
DTC Description Fault Trigger Condition TCM P0657:00 Actuator Supply Voltage "A" Circuit/Open: No Sub Type Information This DTC indicates an open circuit in the transmission solenoid power control 1 (TSPC1) circuit. TCM P0753:00 Shift Solenoid "A" Electrical: No Sub Type Information This DTC illuminates the wrench light in conjunction with P0973, P0974 and/or P097A. Resolve the more specific DTC first. TCM P0754:00 Shift Solenoid "A" Intermittent: No Sub Type Information This DTC indicates a SSA fault, but the fault did not last long enough to set a more specific DTC. TCM P0758:00 Shift Solenoid "B" Electrical: No Sub Type Information This DTC illuminates the wrench light in conjunction with P0976, P0977 and/or P097B. Resolve the more specific DTC first. TCM P0759:00 Shift Solenoid "B" Intermittent: No Sub Type Information This DTC indicates a SSB fault, but the fault did not last long enough to set a more specific DTC. TCM P0763:00 Shift Solenoid "C" Electrical: No Sub Type Information This DTC illuminates the wrench light in conjunction with P0779, P0980 and/or P097C. Resolve the more specific DTC first. TCM P0764:00 Shift Solenoid "C" Intermittent: No Sub Type Information This DTC indicates a SSC fault, but the fault did not last long enough to set a more specific DTC. TCM P0768:00 Shift Solenoid "D" Electrical: No Sub Type Information This DTC illuminates the wrench light in conjunction with P0982, P0983 and/or P097D. Resolve the more specific DTC first. TCM P0769:00 Shift Solenoid "D" Intermittent: No Sub Type Information This DTC indicates a SSD fault, but the fault did not last long enough to set a more specific DTC. TCM P0773:00 Shift Solenoid "E" Electrical: No Sub Type Information This DTC illuminates the wrench light in conjunction with P0985, P0986 and/or P097E. Resolve the more specific DTC first. TCM P0774:00 Shift Solenoid "E" Intermittent: No Sub Type Information This DTC indicates a SSE fault, but the fault did not last long enough to set a more specific DTC. TCM P0973:00 Shift Solenoid "A" Control Circuit Low: No Sub Type Information This DTC indicates a short to ground in the SSA circuit. TCM P0974:00 Shift Solenoid "A" Control Circuit High: No Sub Type Information This DTC indicates a short to power in the SSA circuit. TCM P0976:00 Shift Solenoid "B" Control Circuit Low: No Sub Type Information This DTC indicates a short to ground in the SSB circuit. TCM P0977:00 Shift Solenoid "B" Control Circuit High: No Sub Type Information This DTC indicates a short to power in the SSB circuit. TCM P0979:00 Shift Solenoid "C" Control Circuit Low: No Sub Type Information This DTC indicates a short to ground in the SSC circuit. TCM P097A:00 Shift Solenoid "A" Control Circuit/Open: No Sub Type Information This DTC indicates an open circuit in the SSA circuit. TCM P097B:00 Shift Solenoid "B" Control Circuit/Open: No Sub Type Information This DTC indicates an open circuit in the SSB circuit. TCM P097C:00 Shift Solenoid "C" Control Circuit/Open: No Sub Type Information This DTC indicates an open circuit in the SSC circuit. TCM P097D:00 Shift Solenoid "D" Control Circuit/Open: No Sub Type Information This DTC indicates an open circuit in the SSD circuit. TCM P097E:00 Shift Solenoid "E" Control Circuit/Open: No Sub Type Information This DTC indicates an open circuit in the SSE circuit. TCM P097F:00 Shift Solenoid "F" Control Circuit/Open: No Sub Type Information This DTC indicates an open circuit in the SSF circuit. TCM P0980:00 Shift Solenoid "C" Control Circuit High: No Sub Type Information This DTC indicates a short to power in the SSC circuit. TCM P0982:00 Shift Solenoid "D" Control Circuit Low: No Sub Type Information This DTC indicates a short to ground in the SSD circuit. TCM P0983:00 Shift Solenoid "D" Control Circuit High: No Sub Type Information This DTC indicates a short to power in the SSD circuit. TCM P0985:00 Shift Solenoid "E" Control Circuit Low: No Sub Type Information This DTC indicates a short to ground in the SSE circuit. TCM P0986:00 Shift Solenoid "E" Control Circuit High: No Sub Type Information This DTC indicates a short to power in the SSE circuit. TCM P0998:00 Shift Solenoid "F" Control Circuit Low: No Sub Type Information This DTC indicates a short to ground in the SSF circuit. TCM P0999:00 Shift Solenoid "F" Control Circuit High: No Sub Type Information This DTC indicates a short to power in the SSF circuit. TCM P2709:00 Shift Solenoid "F" Electrical: No Sub Type Information This DTC illuminates the wrench light in conjunction with P0998, P0999 and/or P097F. Resolve the more specific DTC first. TCM P2710:00 Shift Solenoid "F" Intermittent: No Sub Type Information This DTC indicates a SSF fault, but the fault did not last long enough to set a more specific DTC. Possible Sources
- Connectors damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals
- Shift solenoid
- Transmission internal wiring harness
- TCM
- A1 CHECK THE TRANSMISSION SOLENOID POWER CONTROL 1 (TSPC1) CIRCUIT FOR VOLTAGENOTE: This pinpoint test is written to address all shift solenoid electrical faults.. For each test step, only the circuits related to the DTC retrieved during the KOEO test need to be tested.
- Ignition OFF.
- Disconnect Transmission Vehicle Harness C168A.
- Inspect the connector for damaged or pushed out terminals, corrosion, loose wires and missing or damaged seals.
- Ignition ON.
- Measure:
Positive Lead Measurement / Action Negative Lead C168A-9 Ground
Is the voltage greater than 11 volts?
Yes GO to A4 No GO to A2 - A2 CHECK THE TRANSMISSION SOLENOID POWER CONTROL 1 (TSPC1) CIRCUIT FOR AN OPEN
- Ignition OFF.
- Disconnect TCM C1822.
- Inspect the connector for damaged or pushed out terminals, corrosion, loose wires and missing or damaged seals.
Is the resistance less than 3 ohms?
Yes GO to A3 No REPAIR the open circuit. - A3 CHECK THE TRANSMISSION SOLENOID POWER CONTROL 1 (TSPC1) CIRCUIT FOR A SHORT TO GROUND
- Measure:
Positive Lead Measurement / Action Negative Lead C168A-9 Ground
Is the resistance greater than 10, 000 ohms?
Yes INSTALL a new TCM. REFER to: Transmission Control Module (TCM) . CARRY OUT the transmission strategy download. REFER to: Transmission Strategy Download . No REPAIR the circuit short to ground. - Measure:
- A4 CHECK THE SOLENOID CONTROL CIRCUIT FOR AN OPEN
- Ignition OFF.
- Disconnect TCM C1822.
- Inspect the connector for damaged or pushed out terminals, corrosion, loose wires and missing or damaged seals.
- Measure the resistance of the suspect solenoid control circuit using the following chart:
Positive Lead Measurement / Action Negative Lead SSA C168A-14 C1822-14 SSF C168A-23 C1822-16 SSC C168A-16 C1822-1 SSB C168A-15 C1822-3 SSE C168A-22 C1822-4 SSD C168A-21 C1822-13
Is the resistance less than 3 ohms on the suspect circuit?
Yes GO to A5 No REPAIR the open circuit. - A5 CHECK THE SOLENOID CONTROL CIRCUIT FOR A SHORT TO GROUND
- Measure the resistance between the suspect solenoid control circuit and ground using the following chart:
Positive Lead Measurement / Action Negative Lead SSA C168A-14 Ground SSF C168A-23 Ground SSC C168A-16 Ground SSB C168A-15 Ground SSE C168A-22 Ground SSD C168A-21 Ground
Is the resistance greater than 10, 000 ohms on the suspect circuit?
Yes GO to A6 No REPAIR the circuit short to ground. - Measure the resistance between the suspect solenoid control circuit and ground using the following chart:
- A6 CHECK THE SOLENOID CONTROL CIRCUIT FOR A SHORT TOGETHER WITH THE TRANSMISSION POWER CIRCUITS
- For SSA, measure:
Positive Lead Measurement / Action Negative Lead C168A-14 C168A-5 C168A-14 C168A-6 C168A-14 C168A-7 C168A-14 C168A-8 C168A-14 C168A-9 C168A-14 C168A-10 C168A-14 C168A-11 C168A-14 C168A-12 C168A-14 C168A-13 C168A-14 C168A-19
- For SSF, measure:
Positive Lead Measurement / Action Negative Lead C168A-23 C168A-5 C168A-23 C168A-6 C168A-23 C168A-7 C168A-23 C168A-8 C168A-23 C168A-9 C168A-23 C168A-10 C168A-23 C168A-11 C168A-23 C168A-12 C168A-23 C168A-13 C168A-23 C168A-19
- For SSC, measure:
Positive Lead Measurement / Action Negative Lead C168A-16 C168A-5 C168A-16 C168A-6 C168A-16 C168A-7 C168A-16 C168A-8 C168A-16 C168A-9 C168A-16 C168A-10 C168A-16 C168A-11 C168A-16 C168A-12 C168A-16 C168A-13 C168A-16 C168A-19
- For SSB, measure:
Positive Lead Measurement / Action Negative Lead C168A-15 C168A-5 C168A-15 C168A-6 C168A-15 C168A-7 C168A-15 C168A-8 C168A-15 C168A-9 C168A-15 C168A-10 C168A-15 C168A-11 C168A-15 C168A-12 C168A-15 C168A-13 C168A-15 C168A-19
- For SSE, measure:
Positive Lead Measurement / Action Negative Lead C168A-22 C168A-5 C168A-22 C168A-6 C168A-22 C168A-7 C168A-22 C168A-8 C168A-22 C168A-9 C168A-22 C168A-10 C168A-22 C168A-11 C168A-22 C168A-12 C168A-22 C168A-13 C168A-22 C168A-19
- For SSD, measure:
Positive Lead Measurement / Action Negative Lead C168A-21 C168A-5 C168A-21 C168A-6 C168A-21 C168A-7 C168A-21 C168A-8 C168A-21 C168A-9 C168A-21 C168A-10 C168A-21 C168A-11 C168A-21 C168A-12 C168A-21 C168A-13 C168A-21 C168A-19
Are the resistances greater than 10, 000 ohms on the suspect circuit?
Yes GO to A7 No REPAIR the shorted together circuits. - For SSA, measure:
- A7 CHECK THE TRANSMISSION INTERNAL WIRING HARNESS SOLENOID POWER CIRCUIT FOR AN OPEN
- Drain the transmission fluid and remove the transmission fluid pan. REFER to: Transmission Fluid Pan, Gasket and Filter .
- Disconnect Shift Solenoid Connectors (A through F).
- Measure the resistance of the suspect solenoid power circuit using the table below:
SSA
Positive Lead Measurement / Action Negative Lead
Transmission component side, pin 9C1843-1 SSF
Positive Lead Measurement / Action Negative Lead
Transmission component side, pin 9C1848-1 SSC
Positive Lead Measurement / Action Negative Lead
Transmission component side, pin 9C1845-1 SSB
Positive Lead Measurement / Action Negative Lead
Transmission component side, pin 9C1844-1 SSE
Positive Lead Measurement / Action Negative Lead
Transmission component side, pin 9C1847-1 SSD
Positive Lead Measurement / Action Negative Lead
Transmission component side, pin 9C1846-1
Is the resistance less than 3 ohms on the suspect circuit?
Yes GO to A8 No INSTALL a new transmission internal wiring harness (both pieces). REFER to: Transmission Internal Wiring Harness . - A8 CHECK THE TRANSMISSION INTERNAL WIRING HARNESS SOLENOID POWER CIRCUIT FOR A SHORT TO GROUND
- Inspect the transmission internal wiring harness for chafing or bare wires.
Is the resistance greater than 10, 000 ohms?
Yes GO to A9 No INSTALL a new transmission internal wiring harness (both pieces). REFER to: Transmission Internal Wiring Harness . - A9 CHECK THE TRANSMISSION INTERNAL WIRING HARNESS SOLENOID CONTROL CIRCUIT FOR AN OPEN
- Measure the resistance of the suspect solenoid control circuit using the table below:
SSA
Positive Lead Measurement / Action Negative Lead
Transmission component side, pin 14C1843-2 SSF
Positive Lead Measurement / Action Negative Lead
Transmission component side, pin 23C1848-2 SSC
Positive Lead Measurement / Action Negative Lead
Transmission component side, pin 16C1845-2 SSB
Positive Lead Measurement / Action Negative Lead
Transmission component side, pin 15C1844-2 SSE
Positive Lead Measurement / Action Negative Lead
Transmission component side, pin 22C1847-2 SSD
Positive Lead Measurement / Action Negative Lead
Transmission component side, pin 21C1846-2
Is the resistance less than 3 ohms on the suspect circuit?
Yes GO to A10 No INSTALL a new transmission internal wiring harness (both pieces). REFER to: Transmission Internal Wiring Harness . - Measure the resistance of the suspect solenoid control circuit using the table below:
- A10 CHECK THE TRANSMISSION INTERNAL WIRING HARNESS SOLENOID CONTROL CIRCUIT FOR A SHORT TO GROUND
- Inspect the transmission internal wiring harness for chafing or bare wires.
- Measure the resistance between the suspect solenoid control circuit and ground using the table below:
SSA
Positive Lead Measurement / Action Negative Lead C1843-2 Ground SSF
Positive Lead Measurement / Action Negative Lead C1848-2 Ground SSC
Positive Lead Measurement / Action Negative Lead C1845-2 Ground SSB
Positive Lead Measurement / Action Negative Lead C1844-2 Ground SSE
Positive Lead Measurement / Action Negative Lead C1847-2 Ground SSD
Positive Lead Measurement / Action Negative Lead C1846-2 Ground
Is the resistance greater than 10, 000 ohms on the suspect circuit?
Yes GO to A11 No INSTALL a new transmission internal wiring harness (both pieces). REFER to: Transmission Internal Wiring Harness . - A11 CHECK THE SOLENOID CONTROL CIRCUIT FOR AN OPEN WITH THE TRANSMISSION VEHICLE HARNESS CONNECTED
- Connect Transmission Vehicle Harness C168A.
- Measure the resistance of the suspect solenoid control circuit using the table below:
Positive Lead Measurement / Action Negative Lead SSA C1843-2 C1822-14 SSF C1848-2 C1822-16 SSC C1845-2 C1822-1 SSB C1844-2 C1822-3 SSE C1847-2 C1822-4 SSD C1846-2 C1822-13
Is the resistance less than 3 ohms on the suspect circuit?
Yes GO to A12 No There is a terminal fitment issue. REPAIR any loose, damaged or bent terminals. - A12 CHECK THE SOLENOID POWER CIRCUIT FOR VOLTAGE AT THE SOLENOID WITH THE TRANSMISSION VEHICLE HARNESS CONNECTED
- Connect TCM C1822.
- Ignition ON.
- Measure:
Positive Lead Measurement / Action Negative Lead SSA C1843-1 Ground SSF C1848-1 Ground SSC C1845-1 Ground SSB C1844-1 Ground SSE C1847-1 Ground SSD C1846-1 Ground
Is the voltage greater than 11 volts on the suspect circuit?
Yes INSTALL a new solenoid. REFER to: Shift Solenoids (SS) . No There is a terminal fitment issue. REPAIR any loose, damaged or bent terminals.