Honda HR-V: HDS Does Not Communicate with AWD Control Unit (AWD)
Honda HR-V (2015-2021) Service Manual / Driveline & Axles / Differential - Testing & Troubleshooting / Symptom Troubleshooting / HDS Does Not Communicate with AWD Control Unit (AWD)
Remedy
AWD System Symptom Troubleshooting - HDS does not communicate (AWD)
HDS DOES NOT COMMUNICATE WITH VEHICLE (AWD)
Remedy
Dlc Circuit Troubleshooting
REAR DIFFERENTIAL LEAKS FLUID (AWD)
Probable Cause
- Fluid level too high
- Clogged breather hose
- Worn or damaged oil seal
- Damaged sealing washer
- Loose mounting bolts or inadequate sealing
Remedy
- Rear Differential Fluid Inspection and Replacement (AWD)
- Rear Differential Breather Box And Hose Removal And Installation (AWD)
- Rear Differential Oil Seal Replacement (AWD)
- Rear Differential Fluid Inspection and Replacement (AWD)
- Rear Differential Disassembly and Reassembly (AWD)
REAR DIFFERENTIAL OVERHEATS (AWD)
Probable Cause
- Fluid level too low
- Incorrect fluid type
Remedy
- Rear Differential Fluid Inspection and Replacement (AWD)
- Rear Differential Fluid Inspection and Replacement (AWD)
WILL NOT GO INTO AWD MODE, POOR TRACTION, POOR ACCELERATION (AT START), POOR CLIMBING ABILITY (AWD)
Remedy
AWD System Symptom Troubleshooting - Will not go into AWD mode, Poor traction, Poor acceleration (at start), Poor climbing ability (AWD)
CIRCUIT DIAGRAM
REAR DIFFERENTIAL CIRCUIT DIAGRAM (AWD)
.png)
.png)
READ NEXT:
AWD Control Unit Connector For Inputs And Outputs (AWD)
AWD Control Unit Inputs and Outputs for 24P Connector (Connector
Disconnected)
AWD SYSTEM BLEEDING (AWD)
Procedure
NOTE: Whenever the rear differential assembly is disassembled, the AWD with
intel
Rear Differential Fluid Inspection And Replacement (AWD)
Inspection
1. Vehicle - Lift
2. Rear Differential Fluid - Check
Fig. 4: Differential Fluid Check With Filler Plug Torque Specifications
Use solvent and a brush to wash any oil and dirt off the oil
SEE MORE:
DTC U1281, U128D (Keyless Access Power Control Unit)
NOTE:
Refer to the DTC code shown on the display, and then inspect the
connectors and terminals based on the instructions in the table below.
The DTC may be stored due to the grounding failure or the power source
failure at the transmitting
control unit (the grounding inspection and the powe
DTC Troubleshooting 27-12, 27-13: Steering Angle Sensor Stuck,
Output Signal Malfunction
NOTE:
This DTC may set if the vehicle is driven on a lift (wheels are turning)
and the steering wheel is turned
significantly. This is normal, ignore it.
Before you troubleshoot, review the general troubleshooting information.
1. Steering angle sensor performance check 1:
Slowly drive the
© 2019-2025 Copyright www.hohrv2.com
