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)
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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 U1280 (Keyless Access Backup Control Unit) B-CAN Communication
Bus Line Error (BUS-OFF)
DTC (Backup Control Unit)
NOTE: If you are troubleshooting multiple DTCs, be sure to
follow the instructions in B-CAN System Diagnosis Test Mode A - Refer to: Body
Electrical Troubleshooting - B-CAN System Diagnosis Test Mode A - Initial
Communication and DTC Checks.
1. Problem verification.
C
DTC B0002-13
Special Tools Required
SRS Inflator Simulator 07SAZ-TB4011A
SRS Simulator Lead J 070AZ-SNAA100
NOTE:
Before doing this troubleshooting procedure, find out if the vehicle was
in a collision. If so, verify that all the required components were replaced
with new components of the correct part
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