Kickdown Solenoid Relay Control Circuit Fault
Findings, check these first
- Failed kickdown relay
- Open relay control circuit
- Blown kickdown fuse
- Corroded relay socket
- Faulty kickdown switch
Standard procedure
- Test kickdown switch operation
- Swap the relay
- Check the fuse and socket
- Verify control voltage at the relay
- Replace the relay or switch
Code lookup
Type a code above, or start from a symptom or a common code.
Press / to jump to the box. Ford-enhanced powertrain, body, chassis and network codes. Generic P0xxx codes live on OBD Codes List.
Sources and review
Review: checked against the recorded source material.
- OBDII.pro: P1902 Ford definition
live reference page (obdii.pro)
Supports: Ford-family meaning for P1902: Pressure Control Solenoid "B" Intermittent Short
Fetched directly. obdii.pro is a publisher independent of the engine-codes family.
- P1902 FORD Code: Meaning, Causes, and Symptoms | OBD2 Codes
live reference page (obd2-codes.co)
Supports: Ford meaning for P1902: Kickdown Solenoid Relay Control Circuit
Fetched directly. obd2-codes.co phrasing matches the engine-codes family, so it counts as one publisher.
Last updated 2026-09-06.
Report a correction for P1902. Include your vehicle, the issue and a source if you have one.
Related Transmission codes
- P1709Park/Neutral Position Switch Out of Self-Test Range
- P1711Transmission Fluid Temperature Sensor Out of Self-Test Range
- P1747Electronic Pressure Control Solenoid Short Circuit
- P1754Coast Clutch Solenoid Circuit Malfunction
- P1780Transmission Control Switch Out of Self-Test Range
- P1783Transmission Over-Temperature Condition