Edge AWD V6-3.5L (2009)
INSTALL a new SJB. REFER to Smart Junction Box (SJB) See: Power and Ground Distribution/Power Distribution Module/Service and Repair.
No
INSTALL a new DSM. REFER to Driver Seat Module (DSM) See: Mirrors/Memory Positioning Systems/Memory Positioning Module/Service and
Repair.
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Pinpoint Test E: DTC U0155
Driver Seat Module (DSM)
Pinpoint Tests
Pinpoint Test E: DTC U0155
Normal Operation
-
DTC U0155 (Lost Communication With Instrument Panel Cluster (IC) Control Module) - set by the Driver Seat Module (DSM) whenever it
receives invalid data from the Instrument Cluster (IC).
This pinpoint test is intended to diagnose the following:
-
Module communication
-
DSM
-
IC
PINPOINT TEST E: DTC U0155
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E1 VERIFY CUSTOMER CONCERN
-
Ignition ON.
-
Verify that there is an observable symptom present.
-
Is an observable symptom present?
Yes
GO to E2.
No
The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.
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E2 CHECK THE COMMUNICATION NETWORK
-
Ignition ON.
-
Enter the following diagnostic mode on the scan tool: Network Test.
-
Carry out the network test.
-
Does the IC pass the network test?
Yes
GO to E3.
No
REFER to Information Bus.
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E3 RETRIEVE THE RECORDED DTCs FROM THE SELF-TEST
-
Check for recorded DSM DTCs from the self-test.
-
Is DTC B1317 or B1318 recorded?
