307-01A Automatic Transmission, Transaxle- 4.0L: Description And Operation (page 41 of 47)

 

CONTROLLER AREA NETWORK (CAN) 

The high speed CAN broadcast bus network is used to connect the powertrain modules. The CAN bus is connected 
between the following electronic units: 
 
High Speed CAN Bus 

TCM  
Instrument cluster  
Air suspension module  
Steering angle sensor  
Rear differential module  
Centre console switch pack  
Electric park brake module  
Restraints control module  
Engine Control Module (ECM)  
ABS control module  
Adaptive front lighting control module  
Transfer box control module  
Adaptive cruise control module  
Diagnostic socket.  

The CAN bus allows a fast exchange of data between modules. The CAN bus comprises two wires which are identified as 
CAN high (H) and CAN low (L). The two wires are coloured yellow/black (H) and yellow/brown (L) and are twisted 
together to minimise electromagnetic interference (noise) produced by the CAN bus messages. For additional information, 
refer to   

Communications Network

 (418-00 ) 

 
 
In the event of CAN bus failure, the following symptoms may be observed: 
 

Transmission operates in default mode  
Torque converter lock-up clutch control is disabled  
Gear position indication in instrument cluster message centre inoperative (this will also occur with any 
transmission fault).  

DRIVING MODES 

P096800 

EPRS 3 

Short circuit to ground or power break Circuit break 

P097000 

EPRS 3 

Short circuit to ground 

P097100 

EPRS 3 

Short circuit to power supply 

P178300 

Hot shutdown 

General fault type 

P182500 

Shift interlock solenoid 

Short circuit to ground Short circuit to power supply Circuit break 

P271600 

EPRS 4 

Signal voltage too high or too low 

P271800 

EPRS 4 

Short circuit to ground or power break Circuit break 

P272000 

EPRS 4 

Short circuit to ground 

P272100 

EPRS 4 

Short circuit to power supply 

P272500 

EPRS 5 

Signal voltage too high or too low 

P272700 

EPRS 5 

Short circuit to ground or power break Circuit break 

P272900 

EPRS 5 

Short circuit to ground 

P273000 

EPRS 5 

Short circuit to power supply 

P275900 

EPRS 6 

Signal voltage too high 

P276100 

EPRS 6 

Short circuit to ground or power break 

P276200 

EPRS 6 

Signal voltage too small 

P276300 

EPRS 6 

Short circuit to power supply 

P276400 

EPRS 6 

Short circuit to ground