DTC P2800 (16-20 6-Speed A/T)

DTC P2800  : Transmission Range Switch ATP RVS Switch (Open or Short)

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. Check the parameter (s) below with the HDS with the shift lever in R.

   Signal	Threshold		Current conditions
   	Values	Unit	Values	Unit
   Reverse Switch (ATPRVS)	ON

   Do the current condition (s) match the threshold?

   YES 

   Intermittent failure, the system is OK at this time.

   Check for poor connections and loose terminals between the transmission range switch 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.

   NO 

   The failure is duplicated. Go to step 2.

2. Determine possible failure area (transmission range switch, others)

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

   - 2. Disconnect the following connector.

   Transmission range switch 10P connector

   - 3. Connect terminals A and B with a jumper wire.

   Terminal A	Transmission range switch 10P connector (female terminals) No. 5:
   Terminal B	Body ground

   Courtesy of HONDA, U.S.A., INC.

   - 4. Turn the vehicle to the ON mode.

   - 5. Check the parameter (s) below with the HDS.

   Signal	Threshold		Current conditions
   	Values	Unit	Values	Unit
   Reverse Switch (ATPRVS)	ON

   Do the current condition (s) match the threshold?

   YES 

   Replace the transmission range switch .

   NO 

   Go to step 3.

3. Open wire check (ATPRVS line)

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

   - 2. Remove the jumper wire.

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

   - 4. Disconnect the following connector.

   PCM connector B (51P)

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

   Test condition	Vehicle OFF (LOCK) mode
   	Transmission range switch 10P connector: disconnected
   	PCM connector B (51P): disconnected
   Test point 1	Transmission range switch 10P connector (female terminals) No. 5:
   Test point 2	PCM connector B (51P) No. 38 - Refer to: PCM Connector for Inputs and Outputs (6-Speed A/T)

   Courtesy of HONDA, U.S.A., INC.

   Is there continuity?

   YES 

   The ATPRVS wire is OK.

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

   NO 

   Repair an open in the ATPRVS wire between the transmission range switch and the PCM.