DTC P0812: Transmission Range Switch ATPR Switch: Notes

NOTE: Check the label on the PCM to see if it was made by Keihin or Continental. Refer to the Service Manual Fuel and Emissions Systems' General Troubleshooting Information for more details.

Fig 1: Transmission Range Switch - Circuit Diagram

Courtesy of AMERICAN HONDA MOTOR CO., INC.

TRANSMISSION RANGE SWITCH CONTACT POINT INPUT MATRIX

Shift lever position	Input per switch
	ATPP	ATPR	ATPN	ATPD	ATP2	ATP1	ATP FWD	ATP RVS
P	◦	X	X	X	X	X	X	◦
R	X	◦	X	X	X	X	X	◦
N	X	X	◦	X	X	X	X	◦
D	X	X	X	◦	X	X	◦	X
2	X	X	X	X	◦	X	◦	X
1	X	X	X	X	X	◦	◦	X
◦: Closed X: Open