DTC C0030-38, C0033-38, C0036-38, C0039-38

WARNING: This page is about a different car, the 2022 Honda Accord, 2021 Honda Accord, 2020 Honda Accord, 2019 Honda Accord, and 2018 Honda Accord. However, it is still accessible from the selected car via links, so may be relevant.

DTC C0030-38 : Magnetic Encoder (Left Front) Failure (Pulse Missing)DTC C0033-38 : Magnetic Encoder (Right Front) Failure (Pulse Missing)DTC C0036-38 : Magnetic Encoder (Left Rear) Failure (Pulse Missing)DTC C0039-38 : Magnetic Encoder (Right Rear) Failure (Pulse Missing)

NOTE: Before you troubleshoot, review the general troubleshooting information .

DTC Description	DTC
C0030-38 Magnetic Encoder (Left Front) Failure (Pulse Missing)
C0033-38 Magnetic Encoder (Right Front) Failure (Pulse Missing)
C0036-38 Magnetic Encoder (Left Rear) Failure (Pulse Missing)
C0039-38 Magnetic Encoder (Right Rear) Failure (Pulse Missing)

DTC (VSA)

Problem verification

-1. Turn the vehicle to the ON mode.

-2. Clear the DTC with the HDS.

-3. Turn the vehicle to the OFF (LOCK) mode.

-4. Test-drive the vehicle on the road in a straight line over 19 mph (30km/h) for 30 seconds or more.

NOTE: Drive the vehicle on the road, not on a lift.

-5. Check for DTCs with the HDS.

DTC Description	DTC
C0030-38 Magnetic Encoder (Left Front) Failure (Pulse Missing)
C0033-38 Magnetic Encoder (Right Front) Failure (Pulse Missing)

DTC Description	DTC
C0036-38 Magnetic Encoder (Left Rear) Failure (Pulse Missing)
C0039-38 Magnetic Encoder (Right Rear) Failure (Pulse Missing)

Is DTC C0030-38, C0033-38, C0036-38, or C0039-38 indicated?

YES

The failure is duplicated. Go to step 2.

Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting .

Magnetic encoder check

-1. Turn the vehicle to the OFF (LOCK) mode.

-2. Inspect the appropriate magnetic encoder for damage, debris, and correct installation.

DTC	Appropriate Magnetic Encoder	Note
C0030-38	Left-front	Remove the driveshaft outboard joint from the appropriate wheel hub .
C0033-38	Right-front
C0036-38	Left-rear	Remove the hub bearing unit .
C0039-38	Right-rear	Remove the hub bearing unit .

Is the magnetic encoder surface OK?

YES

Check for loose terminals and poor connections in the VSA modulator-control unit 46P connector. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting. If they are OK, replace the VSA modulator-control unit .

Clean the debris from the appropriate magnetic encoder surface on the wheel bearing or the hub bearing unit. If the DTC is still present, replace the appropriate wheel bearing or the hub bearing unit .