DTC P2827: Open in Line Pressure Solenoid Valve A Circuit

WARNING: This page is about a different car, the 2013 Acura MDX, 2012 Acura MDX, 2011 Acura MDX, and 2010 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Before you troubleshoot, record all freeze data and any on-board snapshot with the HDS, and review the GENERAL TROUBLESHOOTING INFORMATION
This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission.

Turn the ignition switch to ON (II).
Clear the DTC with the HDS.
Start the engine in P, and wait for at least 1 second.
Check for Pending or Confirmed DTCs with the HDS.
Is DTC P2827 indicated?

YES -Go to step 5.

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.
Turn the ignition switch to LOCK (0).
Disconnect the line pressure solenoid valve A connector.
Connect a jumper wire between line pressure solenoid valve A connector terminal No. 2 and body ground.

Fig 1: Connecting Jumper Wire Between Line Pressure Solenoid Valve A Connector Terminal No. 2 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Turn the ignition switch to ON (II).
Clear the DTC with the HDS.
Raise the vehicle on a lift, make sure it is securely supported, and allow the all four wheels to rotate freely.
Start the engine. With the brake pedal pressed, shift to D, then release the brake pedal.
Monitoring the APP Sensor (%) with HDS in the A/T Data List, press (2 % opened) and release (0 % opened) the accelerator pedal every 2 seconds each time.
Check for Pending or Confirmed DTCs with the HDS.
Is DTC P2826 indicated?

YES -Go to step 14.

NO -Go to step 17.
Turn the ignition switch to LOCK (0).
Remove the jumper wire.
Check for continuity between line pressure solenoid valve A connector terminal No. 1 and body ground.

Fig 2: Checking For Continuity Between Line Pressure Solenoid Valve A Connector Terminal No. 1 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Faulty line pressure solenoid valve A. Replace the secondary valve body (line pressure solenoid valve A) (see SECONDARY VALVE BODY REPLACEMENT ).

NO -Repair an open in the wire between line pressure solenoid valve A and body ground (G101) (see CONNECTOR TO FUSE/RELAY BOX INDEX ), or repair poor body ground (G101).
Turn the ignition switch to LOCK (0).
Remove the jumper wire.
Jump the SCS line with the HDS.
Disconnect PCM connector B (49P).
Check for continuity between PCM connector terminal B44 and line pressure solenoid valve A connector terminal No. 2.

Fig 3: Checking For Continuity Between PCM Connector Terminal B44 And Line Pressure Solenoid Valve A Connector Terminal No. 2
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Replace the PCM (see PCM REPLACEMENT ).

NO -Repair an open in the wire between PCM connector terminal B44 and line pressure solenoid valve A connector terminal No. 2.