Reference meaning
What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Narrow by vehicle
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Scan worksheet →Manufacturer communications
2Original wording in English
LINCOLN
EATC - INVALID DIAGNOSTIC CODES U1235 AND 155 MAY BE DISPLAYED DURING SELF TEST - VEHICLES BUILT THROUGH 7/1/97 - MESSAGE CENTER - INVALID CHECK TRACTION CONTROL AND/OR INVALID DIAGNOSTIC CODES U1009, U1027 AND/OR U1059 MAY BE DISPLAYED DURING DIAGNOSIS - VEHICLES BUILT THROUGH 7/1/97. *TW
FORD, LINCOLN, MERCURY
ELECTRONIC AUTOMATIC TEMPERATURE CONTROL (EATC) INVALID DIAGNOSTIC CODES U1235 & 155 MAY BE STORED IF THE IGNITION SWITCH IS CYCLED FROM 'OFF' TO 'RUN' EXTREMELY SLOWLY. *TT
Check vehicle applicability
41A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Ford | AEROSTAR ↗ | Year unknown |
| Ford | ASPIRE ↗ | Year unknown |
| Ford | BRONCO ↗ | Year unknown |
| Ford | BRONCO II ↗ | Year unknown |
| Ford | CONTOUR ↗ | Year unknown |
| Ford | CROWN VICTORIA ↗ | Year unknown |
| Ford | E SERIES ↗ | Year unknown |
| Ford | E-150 ↗ | 1998 |
Code meaning and manufacturer information
Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.
SCP (J1850) Invalid or Missing Data for Displays
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.