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Chassis

C0020

Code meaning and manufacturer information

C0020

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.

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A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Manufacturer wording

Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.

MazdaC0020:1C
ABS MOTOR MONITOR SIGNAL DOES NOT CORRESPOND TO ABS HU/CM ON/OFF SIGNAL

NHTSA 10097406

MazdaC0020:71
DSC HU/CM MOTOR MONITOR ON SIGNAL IS NOT INPUT WITHIN SPECIFIED TIME LIMIT OR MORE WHEN MOTOR SIGNAL IS SWITCHED FROM ON TO OFF BY DSC HU/CM

NHTSA 10097406

Manufacturer communications

1

Original wording in English

04-002-13-2812

MAZDA

Reported code forms C0020:1C C0020:71

SOME VEHICLES (EQUIPPED WITH DSC) MAY EXPERIENCE THE ABS WARNING LIGHT ON WITH DTCS C0020:1C AND U0415:92 STORED IN MEMORY. C0020:71 MAY ALSO BE STORED. • DTC C0020:1C: ABS MOTOR MONITOR SIGNAL DOES NOT CORRESPOND TO…

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Check vehicle applicability

2

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

MakeModelModel year
MazdaMAZDA32011
MazdaMAZDA32010

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.

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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.