2021 Honda Ridgeline RTL-EFACTORY OEM SERVICE PROCEDURE

Multipurpose Camera Unit DTCS

DTC Description
B2A00-F8 ACC Brake Control Temporarily Prohibited
B2A10-14 Brake Light Drive Relay Circuit Malfunction
B2A60-52 Dynamic Camera Aiming Incomplete
B2A60-54 Static Camera Aiming Incomplete
B2A60-97 Dust or Dirt On The Camera
B2A70-12 LDW/RDM Switch Signal Circuit Short
B2A70-14 LDW/RDM Switch Signal Circuit Short to Power
C0031-62 Left Front Wheel Speed Sensor Signal Error
C0034-62 Right Front Wheel Speed Sensor Signal Error
C0037-62 Left Rear Wheel Speed Sensor Signal Error
C003A-62 Right Rear Wheel Speed Sensor Signal Error
C0041-14 Brake Switch Signal Circuit Error
C0051-2A Steering Angle Sensor Stack Malfunction
C0051-62 Steering Angle Sensor Straight Point Error
C0051-96 Steering Angle Sensor Malfunction
C0062-F0 Longitudinal Acceleration Sensor (Subfault) Fault Detection By Source Module
C0063-27 Yaw Rate Sensor Gain Error
C0063-28 Yaw Rate Sensor Center Position Revision Value Error
C0063-62 Yaw Rate Sensor Stabilizing Malfunction
C0063-96 Yaw Rate Sensor Diagnose Error
C1040-00 Wheel Speed Signal Error
P0564-11 ACC/LKAS Switch Signal Circuit Short
DTC Detection Item
P0564-15 ACC/LKAS Switch Signal Circuit Open
P0564-F0 ACC Switch Signal Circuit Error
P0589-11 Main Switch Signal Circuit Short
P0589-15 Main Switch Signal Circuit Open
P0720-62 Vehicle Speed Signal Error
P2583-4A Millimeter Wave Radar Function Error
P2583-54 Millimeter Wave Radar Aiming Incomplete
P2583-64 Millimeter Wave Radar Aiming Error
P2583-87 Lost Communication With The Millimeter Wave Radar
P2583-92 CMBS or FCW Over Working
P2583-96 Millimeter Wave Radar Internal Electronic Failure
P2583-97 Dust or Dirt On The Millimeter Wave Radar
U0029-00 F-CAN Malfunction (BUS-OFF)
U0100-00 Lost Communication With The PCM (PGM-FI System)
U0101-00 Lost Communication With The PCM/TCM
U0114-00 Lost Communication With The All Wheel Drive Control Module
U0122-00 Lost Communication With The VSA Modulator-Control Unit
U0123-00 Yaw Rate Sensor Circuit Error
U0126-00 Lost Communication With The Steering Angle Sensor
U0131-00 Lost Communication With The EPS Control Unit
U0155-00 Lost Communication With The Gauge Control Module
U0401-68 *1 PCM (PGM-FI System) Malfunction
U0401-68 *4 PCM (PGM-FI System) Malfunction
U0402-68 PCM/TCM Malfunction
U0416-68 *1 VSA Brake Actuator Malfunction

*1: When the system detects the ACC failure while operating.

*2: When the system detects the FCW/CMBS failure while operating.

*3: When the system detects the LKAS failure while operating.

*4: When the system detects the LDW/RDM failure while operating.

*5: When the system detects a problem while operating, the system stops operating, then the system indicator and brake system indicator (amber) stay on.

*6: When the system detects the multipurpose camera unit software failure/multipurpose camera unit connector poor connections while operating.

*7: When the system detects the image processing part failure in the multipurpose camera unit while operating.

*8: When the system detects the wiper switch failure.

*9: When the system detects the headlight switch failure.

DTC Description
U0416-68 *3 VSA Brake Actuator Malfunction
U0416-F8 *2 VSA Modulator-Control Unit Malfunction
U0416-F8 *4 VSA Modulator-Control Unit Malfunction
U0420-68 EPS Control Unit Malfunction
U0423-68 Gauge Control Module Malfunction
U0481-68 Automatic Lighting/Rain Sensor Malfunction
U1280-00 B-CAN Communication Bus Line Error (Bus-Off)
U1281-00 Lost Communication With The MICU
U128C-00 Lost Communication with The Wiper Control Unit
U1291-00 Lost Communication with The Relay Control Module
U1484-68 *8 Wiper/Washer Switch Failure Information Received
U1484-68 *9 Headlight Switch Failure Information Received
U3000-49 *6 Multipurpose Camera Unit Internal Electronic Failure
U3000-49 *7 Multipurpose Camera Unit Internal Electronic Failure
U3000-51 Multipurpose Camera Unit Update Incomplete

*1: When the system detects the ACC failure while operating.

*2: When the system detects the FCW/CMBS failure while operating.

*3: When the system detects the LKAS failure while operating.

*4: When the system detects the LDW/RDM failure while operating.

*5: When the system detects a problem while operating, the system stops operating, then the system indicator and brake system indicator (amber) stay on.

*6: When the system detects the multipurpose camera unit software failure/multipurpose camera unit connector poor connections while operating.

*7: When the system detects the image processing part failure in the multipurpose camera unit while operating.

*8: When the system detects the wiper switch failure.

*9: When the system detects the headlight switch failure.

Factory Service Tools

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When to See a Mechanic

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

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

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