DTC Troubleshooting: U1291 (Power Distribution Module): Inspection

Communication (B-CAN_H), Communication (B-CAN_L) Open Wire Inspection 

■ Test Procedure 

• Preparation
  • Power distribution module connector B (14P): disconnected
  • Body control module connector B (36P): disconnected
• Procedure
  • Perform the inspection according to the following table.

			(Disconnected) Power distribution module connector B (14P)  female terminals	(Disconnected) Body control module connector B (36P) female terminals
		IG Mode	Courtesy of HONDA, U.S.A., INC.	Courtesy of HONDA, U.S.A., INC.	Normal Conditions
	B-CAN_H open wire inspection	OFF			There is less than 1 Ohm
	B-CAN_L open wire inspection	OFF			There is less than 1 Ohm

■ Results 

• If abnormal, there is a problem in the circuit.
• If normal, there is a problem with the body control module.