Honda HR-V: DTC C1850-12 (44-12): Fail Safe Relay Stuck ON (AWD)
NOTE: Before you troubleshoot, review the General Troubleshooting Information
for the AWD with
intelligent control system.
![AWD System - Diagnostics](images/books/1097/index 73(8).png)
1. Problem verification:
- Turn the vehicle to the ON mode.
- Check the parameter(s) below with the HDS.
![AWD System - Diagnostics](images/books/1097/index 74(8).png)
![AWD System - Diagnostics](images/books/1097/index 75(8).png)
Do the current condition(s) match the threshold?
YES
The failure is duplicated. Go to step 2.
NO
Intermittent failure, the system is OK at this time. If the freeze
data/on-board snapshot of this DTC is
recorded, try to reproduce the failure under the same conditions with the Freeze
data/on-board snapshot.
2. AWD relay check:
- Turn the vehicle to the OFF (LOCK) mode.
- Remove the AWD relay, then test it.
Is the AWD relay OK?
YES
The AWD relay is OK. Go to step 3.
NO
Replace the AWD relay.
3. Shorted wire check (FSR line):
- Disconnect the following connector.
AWD control unit 24P connector
- Check for continuity between test points 1 and 2.
![AWD System - Diagnostics](images/books/1097/index 76(8).png)
![AWD System - Diagnostics](images/books/1097/index 77(8).png)
Is there continuity?
YES
Repair a short to ground in the FSR wire between the AWD relay and the AWD
control unit.
NO
The FSR wire is OK. Go to step 4.
4. Shorted wire check (PWR line to power):
- Turn the vehicle to the ON mode.
- Measure the voltage between test points 1 and 2.
![AWD System - Diagnostics](images/books/1097/index 78(8).png)
![AWD System - Diagnostics](images/books/1097/index 79(7).png)
Is there about 0.1 V or less?
YES
Update the AWD control unit if it does not have the latest software, or
substitute a known-good
AWD control unit, and recheck. If the symptom/indication goes away with the
updated AWD control
unit, troubleshooting is complete. If the symptom/indication goes away with a
known-good AWD control
unit, replace the original AWD control unit.
NO
Repair a short to power in the PWR wire between the AWD relay and the AWD
control unit.
READ NEXT:
NOTE: Before you troubleshoot, review the General Troubleshooting Information
for the AWD with
intelligent control system.
1. Problem verification:
Start the engine.
Check the parameter(s) below
NOTE: Before you troubleshoot, review the General Troubleshooting Information
for the AWD with
intelligent control system.
1. Problem verification (with engine idling):
Turn the vehicle to the ON
NOTE: Before you troubleshoot, review the General Troubleshooting Information
for the AWD with
intelligent control system.
1. Problem verification (with engine idling):
Turn the vehicle to the OFF
SEE MORE:
NOTE:
Check the vehicle 12 volt battery condition first.
Set the fader and the balance positions to the center.
Before doing this troubleshooting, go to Audio-navigation unit power
will not turn on (No information display on touch screen) troubleshooting -
Refer to: Navigation System
Sympto
CLIMATE CONTROL UNIT CONNECTOR FOR INPUTS AND OUTPUTS
Climate Control Unit Connector A (32P)
Climate Control Unit Connector B (12P)*
*:Dual A/C type
Climate Control Unit Connector A (32P)
Climate Control Unit Connector B (12P)
HVAC CONTROL UNIT CONNECTOR FOR INPUTS AND OUTPUTS (KA/KX)