Fault code lookup

ChassisC1620

Caution

Severity: Caution - get it checked when you can

ECU incorrect attachment

13 brands affected · Description from BYD data.

Key terms: ABS: anti-lock braking, which stops the wheels locking · Stability control: helps stop the car skidding · Wheel speed sensor: measures how fast each wheel turns

1What it means in plain English

A chassis system has a fault, usually ABS, traction control or stability control, but some makes use this range for airbags, electric power steering or park brakes.

2Common causes

  1. Faulty wheel speed sensor
  2. Damaged sensor ring or wiring
  3. Faulty ABS module
  4. Low brake fluid
  5. Wheel bearing damage

3Can I drive?

Caution · drive with care

If the code names an airbag or SRS system, the airbag may not deploy in a crash: have it diagnosed promptly. If it names electric power steering, the assist may fail and the steering can become heavy: stop safely if that happens. If it names the brakes or park brake, have it checked before driving when braking feels abnormal. Otherwise ABS and stability control may be disabled: drive carefully, especially in wet conditions, and have it checked soon.

This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.

4Brand data 13

BrandCodeDescriptionSystem
BYDC1620ECU incorrect attachment BrandChassis
CheryC1620ECU incorrect attachment BrandChassis
DFFSC1620The electric power steering (EPS) status signal of the lane keeping assist (LKA) function is incorrect BrandChassis
DFFXC1620ECU incorrect attachment BrandChassis
GeelyC1620ECU incorrect attachment BrandChassis
Great WallC1620ECU incorrect attachment BrandChassis
HafeiC1620ECU incorrect attachment BrandChassis
HondaC1620No description available Chassis
HyundaiC1620No description available Chassis
MitsubishiC1620AYC control abnormality BrandChassis
ProtonC1620AYC control abnormality BrandChassis
MG (SAIC)C1620Improper program termination BrandChassis
SuzukiC1620CAN Invalid Data From ECM BrandChassis

Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.

5Extended variant codes 4

These 7-character codes are manufacturer-specific variants of C1620 and may be reported by some scan tools.

BrandCodeDescriptionSystem
Mercedes-BenzC162000Longitudinal/Lateral acceleration sensor out of range during calibration (EOL) BrandChassis
SsangYongC162000System calibration not performed BrandChassis
HyundaiC162007The SCC Module sets DTC when there are sensor alignment failures.When the horizontal and vetical angle of SCC Module is within specified range, SCC alignment completes successfully.So, before performing SCC alignment, check for proper vehicle frame and module bracket alignment BrandChassis
SsangYongC162087CAN communication: no Forward Collision Mitigation (FCM) communication - timeout BrandChassis

6Related codes

  • C1621 Speed abnormal 1
  • C1622 Battery voltage too low
  • C1623 Engine status signal value is out of range
  • C1624 Speed abnormal 2
  • C1625 Vehicle parking status signal value is out of range
  • C1626 Steering angle sensor abnormal
  • C1627 AWC current failure1
  • C1628 AWC current failure2
  • C1629 ASC timeout
  • C162A Brake Booster Large Vacuum Leak Detected
  • C162000 Longitudinal/Lateral acceleration sensor out of range during calibration (EOL)
  • C162087 CAN communication: no Forward Collision Mitigation (FCM) communication - timeout

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