2002 Mercury Villager EstateFACTORY OEM SERVICE PROCEDURE

Anti-Lock Brake Control Module Diagnostic Trouble Code (DTC) Index

ANTI-LOCK BRAKE CONTROL MODULE DIAGNOSTIC TROUBLE CODE INDEX

DTC Description Source Action
12 No DTCs Retrieved Anti-Lock Brake Control Module The system is OK.
18 Anti-Lock Brake Sensor Indicator Output Failure Anti-Lock Brake Control Module GO to PINPOINT TEST C: DTC 18 - ANTI-LOCK BRAKE SENSOR INDICATOR OUTPUT FAILURE .
21 RF Anti-Lock Brake Sensor Circuit Open Anti-Lock Brake Control Module GO to PINPOINT TEST D: DTC 21 (RF), 22 (RF), 25 (LF), 26 (LF), 31 (RR), 32 (RR), 35 (LR), 36 (LR) - ANTI-LOCK BRAKE SENSOR CIRCUIT FAILURE .
22 RF Anti-Lock Brake Sensor Circuit Short Anti-Lock Brake Control Module GO to PINPOINT TEST D: DTC 21 (RF), 22 (RF), 25 (LF), 26 (LF), 31 (RR), 32 (RR), 35 (LR), 36 (LR) - ANTI-LOCK BRAKE SENSOR CIRCUIT FAILURE .
25 LF Anti-Lock Brake Sensor Circuit Open Anti-Lock Brake Control Module GO to PINPOINT TEST D: DTC 21 (RF), 22 (RF), 25 (LF), 26 (LF), 31 (RR), 32 (RR), 35 (LR), 36 (LR) - ANTI-LOCK BRAKE SENSOR CIRCUIT FAILURE .
26 LF Anti-Lock Brake Sensor Circuit Short Anti-Lock Brake Control Module GO to PINPOINT TEST D: DTC 21 (RF), 22 (RF), 25 (LF), 26 (LF), 31 (RR), 32 (RR), 35 (LR), 36 (LR) - ANTI-LOCK BRAKE SENSOR CIRCUIT FAILURE .
31 RR Anti-Lock Brake Sensor Circuit Open Anti-Lock Brake Control Module GO to PINPOINT TEST D: DTC 21 (RF), 22 (RF), 25 (LF), 26 (LF), 31 (RR), 32 (RR), 35 (LR), 36 (LR) - ANTI-LOCK BRAKE SENSOR CIRCUIT FAILURE .
32 RR Anti -Lock Brake Sensor Circuit Short Anti-Lock Brake Control Module GO to PINPOINT TEST D: DTC 21 (RF), 22 (RF), 25 (LF), 26 (LF), 31 (RR), 32 (RR), 35 (LR), 36 (LR) - ANTI-LOCK BRAKE SENSOR CIRCUIT FAILURE .
35 LR Anti-Lock Brake Sensor Circuit Open Anti-Lock Brake Control Module GO to PINPOINT TEST D: DTC 21 (RF), 22 (RF), 25 (LF), 26 (LF), 31 (RR), 32 (RR), 35 (LR), 36 (LR) - ANTI-LOCK BRAKE SENSOR CIRCUIT FAILURE .
36 LR Anti -Lock Brake Sensor Circuit Short Anti-Lock Brake Control Module GO to PINPOINT TEST D: DTC 21 (RF), 22 (RF), 25 (LF), 26 (LF), 31 (RR), 32 (RR), 35 (LR), 36 (LR) - ANTI-LOCK BRAKE SENSOR CIRCUIT FAILURE .
41 RF Hydraulic Control Unit Outlet Valve Anti-Lock Brake Control Module GO to PINPOINT TEST E: DTC 41 (RF OUTLET), 42 (RF INLET), 45 (LF OUTLET), 46 (LF INLET), 51 (RR OUTLET), 52 (RR INLET), 55 (REAR OUTLET), 56 (REAR INLET) - HYDRAULIC CONTROL UNIT VALVE FAILURE .
42 RF Hydraulic Control Unit Inlet Valve Anti-Lock Brake Control Module GO to PINPOINT TEST E: DTC 41 (RF OUTLET), 42 (RF INLET), 45 (LF OUTLET), 46 (LF INLET), 51 (RR OUTLET), 52 (RR INLET), 55 (REAR OUTLET), 56 (REAR INLET) - HYDRAULIC CONTROL UNIT VALVE FAILURE .
45 LF Hydraulic Control Unit Outlet Valve Anti-Lock Brake Control Module GO to PINPOINT TEST E: DTC 41 (RF OUTLET), 42 (RF INLET), 45 (LF OUTLET), 46 (LF INLET), 51 (RR OUTLET), 52 (RR INLET), 55 (REAR OUTLET), 56 (REAR INLET) - HYDRAULIC CONTROL UNIT VALVE FAILURE .
46 LF Hydraulic Control Unit Inlet Valve Anti-Lock Brake Control Module GO to PINPOINT TEST E: DTC 41 (RF OUTLET), 42 (RF INLET), 45 (LF OUTLET), 46 (LF INLET), 51 (RR OUTLET), 52 (RR INLET), 55 (REAR OUTLET), 56 (REAR INLET) - HYDRAULIC CONTROL UNIT VALVE FAILURE .
51 RR Hydraulic Control Unit Outlet Valve Anti-Lock Brake Control Module GO to PINPOINT TEST E: DTC 41 (RF OUTLET), 42 (RF INLET), 45 (LF OUTLET), 46 (LF INLET), 51 (RR OUTLET), 52 (RR INLET), 55 (REAR OUTLET), 56 (REAR INLET) - HYDRAULIC CONTROL UNIT VALVE FAILURE .
52 RR Hydraulic Control Unit Inlet Valve Anti-Lock Brake Control Module GO to PINPOINT TEST E: DTC 41 (RF OUTLET), 42 (RF INLET), 45 (LF OUTLET), 46 (LF INLET), 51 (RR OUTLET), 52 (RR INLET), 55 (REAR OUTLET), 56 (REAR INLET) - HYDRAULIC CONTROL UNIT VALVE FAILURE .
55 LR Hydraulic Control Unit Outlet Valve Anti-Lock Brake Control Module GO to PINPOINT TEST E: DTC 41 (RF OUTLET), 42 (RF INLET), 45 (LF OUTLET), 46 (LF INLET), 51 (RR OUTLET), 52 (RR INLET), 55 (REAR OUTLET), 56 (REAR INLET) - HYDRAULIC CONTROL UNIT VALVE FAILURE .
56 LR Hydraulic Control Unit Inlet Valve Anti-Lock Brake Control Module GO to PINPOINT TEST E: DTC 41 (RF OUTLET), 42 (RF INLET), 45 (LF OUTLET), 46 (LF INLET), 51 (RR OUTLET), 52 (RR INLET), 55 (REAR OUTLET), 56 (REAR INLET) - HYDRAULIC CONTROL UNIT VALVE FAILURE .
57 Low Battery Voltage Anti-Lock Brake Control Module GO to PINPOINT TEST F: DTC 57 - BATTERY VOLTAGE LOW .
61 Pump Motor or Pump Motor Relay Anti-Lock Brake Control Module GO to PINPOINT TEST G: DTC 61 - PUMP MOTOR OR PUMP MOTOR RELAY FAILURE .
63 Solenoid Valve Relay Anti-Lock Brake Control Module GO to PINPOINT TEST H: DTC 63 - SOLENOID VALVE RELAY 
71 ECU Internal Failure Anti-Lock Brake Control Module GO to PINPOINT TEST I: DTC 71 - ECU INTERNAL FAILURE .
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty
Get a Free Quote

No obligation. See pricing before you book.