LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 2000 >> ZX2 Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 430 (HVAC Control System - General Information) >> Diagnosis And Testing >> Climate Control System >> REM Diagnostic Trouble Code (DTC) Index
April 5, 2026: LEMON Manuals is launched! Read the announcement.

REM Diagnostic Trouble Code (DTC) Index

WARNING: This page is about a different car, the 2002 Ford Windstar. However, it is still accessible from the selected car via links, so may be relevant.
REM DIAGNOSTIC TROUBLE CODE (DTC) INDEX

DTC Description Source Action
B2539 Aux A/C Mode Position Reference Circuit Short to Ground (Invalid) REM Go To PINPOINT TEST O: THE PANEL/FLOOR CONTROLS DO NOT OPERATE USING THE FRONT/REAR AUXILIARY CLIMATE CONTROLS .
B2540 Aux A/C Mode Position Reference Circuit Short to Battery REM Go To PINPOINT TEST O: THE PANEL/FLOOR CONTROLS DO NOT OPERATE USING THE FRONT/REAR AUXILIARY CLIMATE CONTROLS .
B2543 Aux A/C Control Switch Reference Circuit Short to Ground (Invalid) REM Go To PINPOINT TEST R: THE PANEL/FLOOR AND COOL/WARM CONTROLS DO NOT OPERATE/DO NOT OPERATE CORRECTLY WHEN USING THE REAR AUXILIARY CONTROLS .
B2544 Aux A/C Control Switch Reference Circuit Short to Battery REM Go To PINPOINT TEST R: THE PANEL/FLOOR AND COOL/WARM CONTROLS DO NOT OPERATE/DO NOT OPERATE CORRECTLY WHEN USING THE REAR AUXILIARY CONTROLS .
B2559 Aux A/C Blower Motor Relay Circuit Short to Battery REM Go To PINPOINT TEST M: THE AUXILIARY BLOWER MOTOR IS INOPERATIVE .
B2560 Aux A/C Blower Motor Relay Circuit Short to Ground REM Go To PINPOINT TEST M: THE AUXILIARY BLOWER MOTOR IS INOPERATIVE .
B2561 Aux A/C Blower Speed 1 Circuit Failure REM Go To PINPOINT TEST M: THE AUXILIARY BLOWER MOTOR IS INOPERATIVE .
B2562 Aux A/C Blower Speed 1 Circuit Short to Ground REM Go To PINPOINT TEST M: THE AUXILIARY BLOWER MOTOR IS INOPERATIVE .
B2563 Aux A/C Blower Speed 2 Circuit Failure REM Go To PINPOINT TEST M: THE AUXILIARY BLOWER MOTOR IS INOPERATIVE .
B2564 Aux A/C Blower Speed 2 Circuit Short to Ground REM Go To PINPOINT TEST M: THE AUXILIARY BLOWER MOTOR IS INOPERATIVE .
U1178 SCP (J1850) Invalid or Missing Data for Climate Control (HVAC) ICM CARRY OUT the IC selftest.
U1262 SCP (J1850) Communication Bus Fault - REFER to MODULE COMMUNICATIONS NETWORK .