ITB18-005B

Classification:
Reference:
Date:
DA18-002B
ITB18-005B
March 24, 2021
ADAS SYSTEM DTC C1A03, C1A04, AND/OR C1B01
SERVICE INFORMATION
This bulletin has been amended. Please see AMENDMENT HISTORY on the last page.
Please discard previous versions of this bulletin.
APPLIED VEHICLES:
2017 – 2018 Q50 (V37)
2017 – 2018 Q50 Hybrid (V37)
2017 – 2018 Q60 (V37)
2017 – 2018 Q70 (Y51)
2017 – 2018 Q70 Hybrid (Y51)
2017 – 2018 QX30 (H15)
2017 QX50 (J50)
2019 QX50 (J55)
2017 – 2018 QX60 (L50)
2017 – 2018 QX60 Hybrid (L50)
2017 – 2018 QX80 (Z62)
2017 QX70 (S51)
SERVICE INFORMATION
If the following ICC/ADAS codes are stored, make sure to follow the diagnostic procedures in the Electronic
Service Manual (ESM) before replacing any parts.
C1A03 – VEHICLE SPEED SENSOR

The diagnostic procedure in the ESM includes check and, if needed, repair for ABS DTCs before
replacing ADAS components.

If repairs are performed for the ABS system; when compete, perform DTC Confirmation Procedure
again before doing any additional repairs.
C1A04 – ABS/TCS/VDC SYSTEM

The diagnostic procedure in the ESM includes check and, if needed, repair for ABS DTCs before
replacing ADAS components.

If repairs are performed for the ABS system; when compete, perform DTC Confirmation Procedure
again before doing any additional repairs.
C1B01 CAM AIMING INCMP

The diagnostic procedure in the ESM includes check and, if needed, repair for LANE CAMERA
DTCs before replacing ADAS components.

LANE CAMERA DTC may require adjustment of the lane camera.

If repairs/adjustments are performed for the Lane Camera; when compete, perform DTC Confirmation
Procedure again before doing any additional repairs.
Infiniti Bulletins are intended for use by qualified technicians, not 'do-it-yourselfers'. Qualified technicians are properly trained
individuals who have the equipment, tools, safety instruction, and know-how to do a job properly and safely. NOTE: If you believe that
a described condition may apply to a particular vehicle, DO NOT assume that it does. See your Infiniti retailer to determine if this
applies to your vehicle.
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AMENDMENT HISTORY
DATE
REFERENCE
DESCRIPTION
February 1, 2018
ITB18-005
Original bulletin published
March 26, 2018
ITB18-005a
The Applied Vehicles section has been revised
March 24, 2021
ITB18-005B
Classification number updated
2/2
ITB18-005B