DTC P2826 (16-20 6-Speed A/T)

DTC P2826  : Line Pressure Solenoid Valve A Low Input

NOTE: 

• Before you troubleshoot, review the General Troubleshooting Information - Refer to: How to Troubleshoot the A/T System .
• This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission.

DTC (A/T)

1. Problem verification

   - 1. Turn the vehicle to the ON mode.

   - 2. Clear the DTC with the HDS.

   - 3. Start the engine.

   - 4. With the brake pedal pressed, shift to D, then release the brake pedal.

   - 5. Monitoring the APP Sensor (%) with the HDS, press (2 % opened) and release (0 % opened) the accelerator pedal every 2 seconds.

   Signal	Current conditions
   	Values	Unit
   APP Sensor (%)

   - 6. Check for Pending or Confirmed DTCs with the HDS.

   DTC Description	Confirmed DTC	Pending DTC	Freeze Frame
   P2826 Line Pressure Solenoid Valve A Low Input

   Is DTC P2826 indicated?

   YES 

   The failure is duplicated. Go to step 2.

   NO 

   Intermittent failure, the system is OK at this time.

   Check for poor connections and loose terminals between line pressure solenoid valve A and the PCM.

   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. Fuse check

   - 1. Turn the vehicle to the OFF (LOCK) mode.

   - 2. Check the following fuse.

   Fuse	No. C7 (15 A)
   Location	Under-dash fuse/relay box

   Is the fuse OK?

   YES 

   The fuse is OK. Go to step 3.

   NO 

   Replace the No. C7 (15 A) fuse, and recheck. If the fuse blows again, repair a short to ground on the No. C7 (15 A) fuse circuit, and recheck.

3. Open wire check (IG1 (VBSOL) line)

   - 1. Jump the SCS line with the HDS, and wait more than 1 minute.

   - 2. Disconnect the following connector.

   PCM connector B (51P)

   - 3. Turn the vehicle to the ON mode.

   - 4. Measure the voltage between test points 1 and 2.

   Test condition	Vehicle ON mode
   	PCM connector B (51P): disconnected
   Test point 1	PCM connector B (51P) No. 1 - Refer to: PCM Connector for Inputs and Outputs (6-Speed A/T)
   Test point 2	Body ground

   Is there battery voltage?

   YES 

   The IG1 (VBSOL) wire is OK. Go to step 4.

   NO 

   Repair an open in the IG1 (VBSOL) wire between the PCM and the No. C7 (15 A) fuse in the under-dash fuse/relay box.

4. Line pressure solenoid valve A check

   - 1. Turn the vehicle to the OFF (LOCK) mode.

   - 2. Reconnect PCM connector B (51P).

   - 3. Disconnect the following connector.

   Line pressure solenoid valve A 2P connector

   - 4. Turn the vehicle to the ON mode.

   - 5. Clear the DTC with the HDS.

   - 6. Start the engine in P, and wait for at least 1 second.

   - 7. Check for Pending or Confirmed DTCs with the HDS.

   DTC Description	Confirmed DTC	Pending DTC	Freeze Frame
   P2826 Line Pressure Solenoid Valve A Low Input

   Is DTC P2826 indicated?

   YES 

   Line pressure solenoid valve A is OK. Go to step 5.

   NO 

   Faulty line pressure solenoid valve A. Replace the secondary valve body (line pressure solenoid valve A) .

5. Shorted wire check (PLA line)

   - 1. Turn the vehicle to the OFF (LOCK) mode.

   - 2. Jump the SCS line with the HDS, and wait more than 1 minute.

   - 3. Disconnect the following connector.

   PCM connector B (51P)

   - 4. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Line pressure solenoid valve A 2P connector: disconnected
   	PCM connector B (51P): disconnected
   Test point 1	PCM connector B (51P) No. 5 - Refer to: PCM Connector for Inputs and Outputs (6-Speed A/T)
   Test point 2	Body ground

   Is there continuity?

   YES 

   Repair a short to ground in the PLA wire between line pressure solenoid valve A and the PCM.

   NO 

   The PLA wire is OK. Replace the PCM - Refer to: PCM Removal and Installation (6-Speed A/T), ('16-'18 9-Speed A/T) .