H: CAN Continuity

At the J1962 connector measure the resistance between pins 6 & 14

Is the resistance approximately 60 ohms?

Yes
Good

Is the resistance approximately 120 ohms?

Yes
Bad, check for a break between INST & ABS/TCCM

Is the resistance infinity?

Yes
Bad, probable fault between J1962 & INST

Is the resistance approximately 0 (zero)?

Yes
Bad, check for short between CAN+ & CAN-

Fault/Component Relationship:

CAN Failures
Listed Numerically

Number Failure Description
1 Fault preventing communication with ABS/TCCM
2 Fault preventing communication with TCM
3 Fault preventing communication with ECM
4 Fault preventing communication with 'J' gate
5 Fault preventing communication with INST
6 Connector dislodged from ABS/TCCM
7 Connector dislodged from TCM
8 Connector dislodged from ECM
9 Connector dislodged from 'J gate
10 Connector dislodged from INST
11 CAN bus pin 'back-out' on ABS/TCCM connector
12 CAN bus pin 'back-out' on TCM connector
13 CAN bus pin 'back-out' on TCM connector
14 CAN bus pin 'back-out' on ECM connector
15 CAN bus pin 'back-out' on ECM Connector
16 CAN bus pin 'back-out' on 'J' gate connector
17 CAN bus pin 'back-out' on 'J gate connector
18 CAN bus pin 'back-out on INST connector
19 CAN bus pin 'back-out' / connector dislodged or connection between ABS/TCCM & TCM
20 CAN bus pin 'back-out' connector dislodged or connection between ECM & 'J' gate
21 Continuity fault on CAN bus between ABS/TCCM and TCM (from connector 19 to ABS/TCCM)
22 Continuity fault on CAN bus between TCM and ABS/TCCM (from connector 19 to TCM)
23 Continuity fault between ECM and TCM
24 Continuity fault on CAN bus between ECM and 'J' gate (from connector 20 to ECM)
25 Continuity fault on CAN bus between 'J' gate and ECM (from connector 20 to 'J' gate)
26 Continuity fault between 'J' gate and INST
27 Short to battery of CAN (-)
28 Short to ground of CAN (+)
29 Short CAN (-) to CAN (+)
30 Physical layer failure in a control module causing one of the faults 27, 28 or 29
31 CAN bus pin 'back-out' on INST connector
32 Continuity fault on CAN bus between J1962 and INST
33 CAN bus pin 'back-out' on J1962 connector