DTC C1852-19 (62-04) (AWD) (2016 2017 2018)
DTC C1852-19 : Solenoid Valve Circuit High Current
NOTE: Before you troubleshoot, review the General Troubleshooting Information for the AWD with intelligent control system .
| DTC Description | DTC | Freeze Frame |
|---|---|---|
| C1852-19 Solenoid Valve Circuit High Current |
DTC (AWD)
- 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.
DTC Description DTC Freeze Frame C1852-19 Solenoid Valve Circuit High Current Is DTC C1852-19 indicated?
YES
The failure is duplicated. Go to step 3.
NO
Go to step 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 .
Air Bleeding
Check for DTCs with the HDS.
DTC Description DTC Freeze Frame C1852-19 Solenoid Valve Circuit High Current 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.
- 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.
Test condition Vehicle OFF (LOCK) mode Rear differential solenoid valve 1P connector: disconnected AWD control unit 24P connector: disconnected Test point 1 AWD control unit 24P connector No. 15 Test point 2 Body ground 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.
- 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 deg.F (10 deg.C)-86 deg.F (30 deg.C). 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.
Signal Current conditions Values Unit Oil temperature for rear differential -3. Turn the vehicle to the OFF (LOCK) mode.
-4. Measure the resistance between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Rear differential solenoid valve 1P connector: disconnected AWD control unit 24P connector: disconnected Test point 1 Rear differential solenoid valve 1P connector No. 1 Test point 2 Body ground Is there about 10 ohms 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