Honda HR-V: DTC C1852-19 (62-04): Solenoid Valve Circuit High Current (AWD)

NOTE: Before you troubleshoot, review the General Troubleshooting Information for the AWD with intelligent control system.

1. Problem verification (with engine idling):

1. Turn the vehicle to the OFF (LOCK) mode.
2. Clear the DTC with the HDS.
3. Start the engine.
4. Check for DTCs with the HDS.

Is DTC C1852-19 indicated?

YES

The failure is duplicated. Go to step 3.

NO

Go to step 2.

2. Problem verification (with rear differential pump motor running):

1. Select ADJUSTMENT in the AWD WITH INTELLIGENT CONTROL with the HDS.
2. With the engine running, do the AIR BLEEDING in the ADJUSTMENT with the HDS.
3. Check for DTCs with the HDS.

Is DTC C1852-19 indicated?

YES

The failure is duplicated. Go to step 3.

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.

3. Shorted wire check (DTYH line):

1. Turn the vehicle to the OFF (LOCK) mode.
2. Disconnect the following connectors.

Rear differential solenoid valve 1P connector

AWD control unit 24P connector

3. Check for continuity between test points 1 and 2.

Is there continuity?

YES

Repair a short to ground in the DTHY wire between the rear differential solenoid valve and the AWD control unit.

NO

The DTHY wire is OK. Go to step 4.

4. Rear differential solenoid valve check:

1. Turn the vehicle to the ON mode.
2. Check the parameter(s) below with the HDS.

NOTE: The rear differential fluid temperature should be 50 ºF (10 ºC) - 86 ºF (30 ºC). If the value is not within the enable temperature, warm up the rear differential fluid temperature by raising the vehicle on a lift and run the vehicle at speeds 13 mph (20 km/h) for 5 seconds then slow down, and stop the wheels.

3. Turn the vehicle to the OFF (LOCK) mode.
4. Measure the resistance between test points 1 and 2.

Is there about 10 Ω or more?

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

Replace the rear differential solenoid valve.

READ NEXT: