Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 620

U0024-CAN B BUS (-) CIRCUIT OPEN

For a complete wiring diagram Refer to Section 8W.

8N - 178

POWER SEATS - ELECTRICAL DIAGNOSTICS

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•

When Monitored:
Continuously.

•

Set Condition:
The Memory Seat Module detects the (D54) CAN B Bus (-) circuit is open.

Possible Causes

(D54) CAN B BUS (-) CIRCUIT OPEN

MEMORY SEAT MODULE

Theory of Operation

Diagnostic Test

1.

TEST FOR INTERMITTENT CONDITION

Turn the ignition on.

With the scan tool, record and erase MSM DTC’s

Cycle the ignition from on to off three times.

Turn the ignition on.

With the scan tool, read active MSM DTC’s.

Does the scan tool display this DTC as active?

Yes

>> Go To 2

No

>> The conditions that caused this code to set are not present at this time. Using the wiring diagram/sche-

matic as a guide, inspect the wiring and connectors.

2.

(D54) CAN B BUS (-) CIRCUIT OPEN

Turn the ignition off.

Disconnect the Memory Seat Module C1 harness connector.

Measure the voltage between the (D54) CAN B Bus (-) circuit and
ground.

Is there any voltage present?

Yes

>> Inspect the wiring and connectors for damage or shorted

circuits. If ok, replace the Memory Seat Module in accor-
dance with the service information.

Perform POWER SEAT SYSTEM VERIFICATION TEST -
VER 1.

No

>> Repair the (D54) CAN B Bus (-) circuit for an open.

Perform BODY VERIFICATION TEST - VER 1.

U0025-CAN B BUS (-) CIRCUIT LOW

For a complete wiring diagram Refer to Section 8W.

LX

POWER SEATS - ELECTRICAL DIAGNOSTICS

8N - 179

(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING) for the diagnostic
test procedure.

U0026-CAN B BUS (-) CIRCUIT HIGH

For a complete wiring diagram Refer to Section 8W.

(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING) for the diagnostic
test procedure.

U0141–LOST COMMUNICATION WITH FRONT CONTROL MODULE

For a complete wiring diagram Refer to Section 8W.

(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING) for the diagnostic
test procedure.

U0151-LOST COMMUNICATION WITH OCCUPANT RESTRAINT CONTROLLER

For a complete wiring diagram Refer to Section 8W.

(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING) for the diagnostic
test procedure.

U0154-LOST COMMUNICATION WITH OCCUPANT CLASSIFICATION MODULE

For a complete wiring diagram Refer to Section 8W.

(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING) for the diagnostic
test procedure.

U0155-LOST COMMUNICATION WITH CLUSTER/CCN

For a complete wiring diagram Refer to Section 8W.

(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING) for the diagnostic
test procedure.

U0156-LOST COMMUNICATION WITH EOM

For a complete wiring diagram Refer to Section 8W.

(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING) for the diagnostic
test procedure.

U0159-LOST COMMUNICATION WITH PARKING ASSIST CONTROL MODULE

For a complete wiring diagram Refer to Section 8W.

(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING) for the diagnostic
test procedure.

U0164-LOST COMMUNICATION WITH HVAC CONTROL MODULE

For a complete wiring diagram Refer to Section 8W.

(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING) for the diagnostic
test procedure.

U0168-LOST COMMUNICATION WITH VEHICLE SECURITY CONTROL MODULE
(SKREEM/WCM)

For a complete wiring diagram Refer to Section 8W.

8N - 180

POWER SEATS - ELECTRICAL DIAGNOSTICS

LX

(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING) for the diagnostic
test procedure.

U0169-LOST COMMUNICATION WITH SUNROOF CONTROL MODULE

For a complete wiring diagram Refer to Section 8W.

(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING) for the diagnostic
test procedure.

U0181–LOST COMMUNICATION WITH HEADLAMP LEVEL TRANSLATOR

For a complete wiring diagram Refer to Section 8W.

(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING) for the diagnostic
test procedure.

U0184-LOST COMMUNICATION WITH RADIO

For a complete wiring diagram Refer to Section 8W.

(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING) for the diagnostic
test procedure.

U0186-LOST COMMUNICATION WITH AUDIO AMPLIFIER

For a complete wiring diagram Refer to Section 8W.

(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING) for the diagnostic
test procedure.

U0195-LOST COMMUNICATION WITH SDARS

For a complete wiring diagram Refer to Section 8W.

(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING) for the diagnostic
test procedure.

U0197-LOST COMMUNICATION WITH HANDS FREE PHONE

For a complete wiring diagram Refer to Section 8W.

(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING) for the diagnostic
test procedure.

U0199-LOST COMMUNICATION WITH DRIVER DOOR MODULE

For a complete wiring diagram Refer to Section 8W.

(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING) for the diagnostic
test procedure.

U0200-LOST COMMUNICATION WITH PASSENGER DOOR MODULE

For a complete wiring diagram Refer to Section 8W.

(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING) for the diagnostic
test procedure.

U0208-LOST COMMUNICATION WITH HEATED SEAT CONTROL MODULE

For a complete wiring diagram Refer to Section 8W.

LX

POWER SEATS - ELECTRICAL DIAGNOSTICS

8N - 181