Dodge Caliber. Manual — part 336
U0212-LOST COMMUNICATION WITH SCM
For a complete wiring diagram Refer to Section 8W.
PM
INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS
8J - 37
•
When Monitored:
With the ignition on.
•
Set Condition:
The Cluster does not receive any LIN Bus messages from the SCM.
Possible Causes
(D506) LIN BUS CIRCUIT OPEN
(F20) FUSED IGNITION SWITCH OUTPUT (RUN) CIRCUIT OPEN
(A411) FUSED B+ (I.O.D.) CIRCUIT OPEN
(Z936/Z937) GROUND CIRCUIT OPEN
SCM
Diagnostic Test
1.
CHECK FOR AN ACTIVE DTC
Turn the ignition on.
With the scan tool, record and erase DTCs.
Wait 30 seconds.
With the scan tool, read DTCs.
Does the scan tool display: U0212-LOST COMMUNICATION WITH SCM?
Yes
>> Go To 2
No
>> The condition that caused this code to set is not present at this time. Check for an intermittent condition
by inspecting the related wiring harness for chaffed, pierced, pinched, and partially broken wires. Also
inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated termi-
nals.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE)
2.
(D506) LIN BUS CIRCUIT OPEN
Turn the ignition off.
Disconnect the Steering Column Module C1 harness connector.
Turn the ignition on.
Measure the voltage of the (D506) LIN BUS circuit.
Is the voltage above 5 volts?
Yes
>> Go To 3
No
>> Repair the (D506) LIN BUS circuit for an open
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 -
ELECTRICAL/ELECTRONIC
CONTROL
MODULES
-
STANDARD PROCEDURE)
8J - 38
INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS
PM
3.
(F202) FUSED IGNITION SWITCH OUTPUT (RUN/START) CIRCUIT OPEN
Measure the voltage of the (F202) Fused Ignition Switch Output (RUN/
START) circuit.
Is the voltage above 10 volts?
Yes
>> Go To 4
No
>> Repair the (F202) Fused Ignition Switch Output (RUN/
START) circuit for an open.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 -
ELECTRICAL/ELECTRONIC
CONTROL
MODULES
-
STANDARD PROCEDURE)
4.
(A411) FUSED B+ (I.O.D.) CIRCUIT OPEN
Measure the voltage of the (A411) Fused B+ (I.O.D.) circuit.
Is the voltage above 10 volts?
Yes
>> Go To 5
No
>> Repair the (A411) Fused B+ (I.O.D.) circuit for an open.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 -
ELECTRICAL/ELECTRONIC
CONTROL
MODULES
-
STANDARD PROCEDURE)
5.
(Z936/Z937) GROUND CIRCUIT OPEN
Measure the resistance between ground and the (Z936–MTX)/(Z937–
ATX) Ground circuit.
Is the resistance below 10K ohms?
Yes
>> Replace the SCM in accordance with the service informa-
tion.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 -
ELECTRICAL/ELECTRONIC
CONTROL
MODULES
-
STANDARD PROCEDURE)
No
>> Repair the (Z936–MTX)/(Z937–ATX) ground circuit for an
open.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 -
ELECTRICAL/ELECTRONIC
CONTROL
MODULES
-
STANDARD PROCEDURE)
PM
INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS
8J - 39
U1008–LIN 1 BUS
For a complete wiring diagram Refer to Section 8W.
8J - 40
INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS
PM
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