P1745 — Ford — Transmission system problems

Transmission system problems. Source catalogue definition; confirm applicability using vehicle service information.

Affected system: Powertrain

Symptoms

• Transmission entering failsafe mode
• Erratic or harsh gear shifting
• Illuminated transmission warning light
• Noticeable delay during gear engagement
• Reduced overall vehicle performance

Possible causes

• Faulty transmission pressure solenoid
• Contaminated or degraded transmission fluid
• Damaged wiring harness or connector terminals
• Malfunctioning transmission pressure sensor
• Defective Transmission Control Module (TCM)
• Internal hydraulic system failure

What to check

• Inspect transmission fluid level and condition for debris
• Examine electrical wiring and connectors for signs of corrosion or damage
• Test transmission pressure solenoid resistance and operation
• Verify the transmission pressure sensor signal using a diagnostic scanner
• Perform a diagnostic reset of the Transmission Control Module