Can Communication Circuit Test

WARNING: This page is about a different car, the 2002 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: For ECM/TCM internal circuit inspection, see ECM/TCM INTERNAL CIRCUIT INSPECTION under COMPONENT TESTS and for DTC U1000 & U1001: CAN COMMUNICATION LINE (ENGINE) and DTC U1000: CAN COMMUNICATION LINE (A/T), see DTC U1000 & U1001: CAN COMMUNICATION LINE (ENGINE) and DTC U1000: CAN COMMUNICATION LINE (A/T) .

For CAN communication circuit test, see Fig 1 -Fig 4 .

Fig 1: Identifying CAN Communication Circuit Test, Step 1

Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Identifying CAN Communication Circuit Test, Step 2

Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 3: Identifying CAN Communication Circuit Test, Step 3

Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 4: Identifying CAN Communication Circuit Test, Step 4

Courtesy of NISSAN MOTOR CO., U.S.A.