Honda HR-V: DTC C1840-14 (47-02): Differential Fluid Pressure Sensor Circuit Low Voltage (AWD)
NOTE: Before you troubleshoot, review the General Troubleshooting Information for the AWD with intelligent control system.
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1. Problem verification:
- Start the engine.
- Check the parameter(s) below with the HDS.
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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. Determine possible failure area (PS1 line, others):
- Turn the vehicle to the OFF (LOCK) mode.
- Disconnect the following connector.
Rear differential fluid pressure sensor 3P connector
- Turn the vehicle to the ON mode.
- Check the parameter(s) below with the HDS.
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Do the current condition(s) match the threshold?
YES
Go to step 4.
NO
Go to step 3.
3. Shorted wire check (PS1 line):
- Turn the vehicle to the OFF (LOCK) mode.
- Disconnect the following connector.
AWD control unit 24P connector
- Check for continuity between test points 1 and 2.
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Is there continuity?
YES
Repair a short to ground or the SG wire in the PS1 wire between the rear differential fluid pressure sensor and the AWD control unit.
NO
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.
4. Determine possible failure area (rear differential fluid pressure sensor, SVCC line):
Measure the voltage between test points 1 and 2.
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Is there about 5 V?
YES
Replace the rear differential fluid pressure sensor.
NO
Go to step 5.
5. Open wire check (SVCC line):
- Turn the vehicle to the OFF (LOCK) mode.
- Disconnect the following connector.
AWD control unit 24P connector
- Check for continuity between test points 1 and 2.
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Is there continuity?
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 an open in the SVCC wire between the rear differential fluid pressure sensor and the AWD control unit.
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DTC C1841-11 (42-02): Differential Fluid Temperature Sensor Circuit
Low Voltage (AWD)
NOTE: Before you troubleshoot, review the General Troubleshooting Information
for the AWD with
intelligent control system.
1. Problem verification:
Turn the vehicle to the ON mode.
Check the para
DTC C1841-13 (42-01): Differential Fluid Temperature Sensor Circuit
High Voltage (AWD)
NOTE: Before you troubleshoot, review the General Troubleshooting Information
for the AWD with
intelligent control system.
1. Problem verification:
Turn the vehicle to the ON mode.
Check the para
DTC C1841-27 (43-01): Differential Fluid Temperature Sensor Circuit
Range/Performance Problem (AWD)
NOTE: Before you troubleshoot, review the General Troubleshooting Information
for the AWD with
intelligent control system.
1. DTC check:
Turn the vehicle to the ON mode.
Check for DTCs with the H
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A/C Refrigerant Recovery/Evacuation/Charging
*Available through the Honda Tool and Equipment Program; call 888-424-6857
Special Tools Required
Compact
Electronic
Vacuum Gauge
Robinair
ROB14777,
commercially
available
R134a A/C
Automatic
Recovery,
Recycle,
Recharge
Machine
ROB48920T,
commercially
available
*Available through the Honda Tool an
Audio System Basic Operation (Models with color audio system)
Models with color audio system
To use the audio system, the ignition switch must be in ACCESSORY (I) or ON
(II).
Use the selector knob or MENU/CLOCK
button to access some audio functions.
Press to switch between the normal
and
extended display for some functions.
Selector knob: Rotate left or r
