Inspection and Verification

WARNING: This page is about a different car, the 2015 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

1.

Verify the customer concern.

2.

Visually inspect for obvious signs of mechanical or electrical damage.

3.

If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.

4.

If the cause is not visually evident, verify the symptom. Refer to: Diagnosis By Symptom .

When the electrical connector or solenoid body is disconnected, inspect the connector for terminal condition, corrosion and contamination. Also inspect the connector seal for damage. Clean, repair or install new components as required.

Power is routed through the Transmission Solenoid Power Control (TSPC) relay (inside the) to all transmission solenoids. If the power circuit to the transmission solenoids or the TSPC relay fails open, then all solenoids are failed electrically OFF. Check for open, short to ground or the transmission connector disconnected. The TSPC relay disables power to the transmission solenoids when certain transmission DTCs are set.

Shift Solenoid Pre-Diagnosis

Selector Lever Position

PCM Commanded Gear

Shift Solenoid

TCC NL

SSA NL TCC NL (1, 2, 3, 4)

SSB NH (3, 5, R)

SSC NL (CB 2, 6)

SSD NH (CB L, R/C 4, 5, 6)

SSE NC

Off

Off⁽¹⁾

Off

Off⁽²⁾

Off

On/Off

Off

On/Off

Off

On/Off

Off

On/Off

M⁽³⁾

Off

⁽¹⁾	Solenoid state changes if vehicle is moving forward with the selector lever in the NEUTRAL position.

⁽²⁾	Solenoid is On when vehicle is above 5 km/h (3 mph).

⁽³⁾	All gears available upon driver request.

CB = Clutch brake

NC = Normally closed

NH = Normally high

NL = Normally low