Milan AWD L4-2.3L (2008)
Information Bus: Pinpoint Tests
Test A: The PCM Does Not Respond To The Scan Tool
PINPOINT TEST A: THE PCM DOES NOT RESPOND TO THE SCAN TOOL
Normal Operation
The PCM communicates with the scan tool through the high speed controller area network (HS-CAN). Circuits VDB04 (WH/BU) (HS-CAN +) and
VDB05 (WH) (HS-CAN -) provide the network connection to the PCM.
The PCM shares the HS-CAN with the following modules:
-
ABS module
-
Accessory protocol interface module (APIM) (if equipped)
-
Instrument cluster (IC)
-
Occupant classification system module (OCSM)
-
Restraints control module (RCM)
-
Transmission control module (TCM) (if equipped)
-
4X4 control module (if equipped)
This pinpoint test is intended to diagnose the following:
-
Wiring, terminals or connectors
-
PCM
A1-A2
