Dodge Neon / Neon SRT-4. Manual - part 449

TEST

ACTION

APPLICABILITY

Turn the ignition on.
Ensure the battery is fully charged.
WARNING: IF THE MODULE IS DROPPED AT ANY TIME, IT MUST BE
REPLACED. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD
RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND PERSONAL IN-
JURY OR DEATH.
NOTE: For the purpose of this test, the AECM and ORC modules will be
referred to as an ACM.
From the list below, select the appropriate module reporting this diagnostic trouble
code.
SELECT ONE:

All

ACM - ACTIVE or STORED DTC

Replace the Airbag Control Module in accordance with Service
Instructions.
Perform AIRBAG VERIFICATION TEST - VER 1.

LEFT SIACM - ACTIVE or STORED DTC

WARNING: MAKE SURE THE BATTERY IS DISCONNECTED,
THEN WAIT TWO MINUTES BEFORE PROCEEDING. Replace
the Left Side Impact Airbag Control Module in accordance with
Service Instructions.
Perform AIRBAG VERIFICATION TEST - VER 1.

RIGHT SIACM - ACTIVE or STORED DTC

WARNING: MAKE SURE THE BATTERY IS DISCONNECTED,
THEN WAIT TWO MINUTES BEFORE PROCEEDING. Replace
the Right Side Impact Airbag Control Module in accordance with
Service information.
Perform AIRBAG VERIFICATION TEST - VER 1.

NOTE: When reconnecting Airbag system components, the ignition must be
turned off and the battery must be disconnected.

AIRBAG

ACCELEROMETER 1 —

Continued

Symptom List:

AIRBAG WARNING INDICATOR OPEN
AIRBAG WARNING INDICATOR SHORT

Test Note:

All symptoms listed above are diagnosed using the same tests.

The title for the tests will be AIRBAG WARNING INDICATOR
OPEN.

When Monitored and Set Condition:

AIRBAG WARNING INDICATOR OPEN

When Monitored:

With ignition on the ACM monitors the PCI Bus for a message from the

MIC containing the airbag warning indicator status. The MIC transmits the message one
time at ignition on, upon lamp state change, or in response to the ACM lamp message.

Set Condition:

This DTC will set if the indicator status is OPEN for 2 or 3 consecutive

messages or 2 or 3 seconds.

AIRBAG WARNING INDICATOR SHORT

When Monitored:

With ignition on the ACM monitors the PCI Bus for a message from the

MIC containing the airbag warning indicator status. The MIC transmits the message one
time at ignition on, upon lamp state change, or in response to the ACM lamp message.

Set Condition:

This DTC will set if the indicator status is SHORT for 2 or 3 consecutive

messages or 2 or 3 seconds.

POSSIBLE CAUSES

MIC, COMMUNICATION FAILURE

WARNING INDICATOR

ACM, WARNING INDICATOR

STORED CODE OR INTERMITTENT CONDITION

ACTIVE CODE PRESENT

TEST

ACTION

APPLICABILITY

Turn the ignition on.
Ensure the battery is fully charged.
NOTE: For the purpose of this test, the AECM and ORC modules will be
referred to as an ACM.
SELECT ACTIVE or STORED DTC:

All

ACM - ACTIVE DTC

Go To

ACM - STORED DTC

Go To

NOTE: When reconnecting Airbag system components, the ignition must be
turned off and the battery must be disconnected.

AIRBAG

TEST

ACTION

APPLICABILITY

With the DRBIII

t, ensure PCI Bus communications with the Instrument Cluster.

Is the Instrument Cluster communicating on the PCI Bus?

All

Yes

→ Go To 3

→ Refer to category COMMUNICATION CATEGORY and select the

related symptom INSTRUMENT CLUSTER BUS +/- SIGNAL
OPEN.

With the DRBIII

t select PASSIVE RESTRAINTS, AIRBAG and MONITOR DIS-

PLAY.
Using the DRBIII

t, read the WARNING LAMP MONITOR screen.

Select the LAMP STATUS displayed on the DRB monitors screen.
Does the DRBIII

t show the LAMP STATUS: OK?

All

YES

Go To

Replace Instrument Cluster.
Perform BODY VERIFICATION TEST - VER 1.

WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNI-
TION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE-
FORE PROCEEDING.
WARNING: IF THE AIRBAG CONTROL MODULE IS DROPPED AT ANY
TIME, IT MUST BE REPLACED. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT
AND PERSONAL INJURY OR DEATH.
If there are no possible causes remaining, view repair.

All

Repair

Replace the Airbag Control Module in accordance with Service
Instructions.
Perform AIRBAG VERIFICATION TEST - VER 1.

NOTE: Ensure the battery is fully charged.
With the DRBIII

t, record and erase all DTCs from all modules.

All active codes must be resolved before diagnosing any stored codes.
Maintain a safe distance from all airbags while performing the following steps.
With the DRBIII

t monitor active codes as you work through the system.

NOTE: If equipped with Passenger Airbag On-Off switch, read the DTC’s in
all switch positions.
Wiggle the wiring harness and connectors of the appropriate airbag system and
rotate the steering wheel from stop to stop.
NOTE: Check connectors - Clean and repair as necessary.
You have just attempted to simulate the condition that initially set the trouble code
message.
The following additional checks may assist you in identifying a possible intermittent
problem:
- Visually inspect related wire harness connectors. Look for broken, bent, pushed out,
spread, corroded, or contaminated terminals.
- Visually inspect the related harnesses. Look for chafed, pierced, pinched or partially
broken wire.
- Refer to Wiring Diagrams and Technical Service Bulletins that may apply.
Did the DTC become active ?

All

Yes

→ Select appropriate symptom from Symptom List.

→ No problem found at this time. Erase all codes before returning

vehicle to customer.

AIRBAG

AIRBAG WARNING INDICATOR OPEN —

Continued

Symptom:

CLUSTER MESSAGE MISMATCH

When Monitored and Set Condition:

CLUSTER MESSAGE MISMATCH

When Monitored:

After the MIC bulb test is completed, the ACM compares the Lamp

Request by ACM, On or Off, and the Lamp on by MIC, On or Off, PCI Bus messages. Each
message is transmitted one time per second or when a change in the lamp state occur.

Set Condition:

If the Lamp Request by ACM, On or Off, and the Lamp on by MIC, On or

Off, messages do not match, the code will set.

POSSIBLE CAUSES

MIC DIAGNOSTIC CODES

CLUSTER MESSAGE MISMATCH

STORED CODE OR INTERMITTENT CONDITION

ACM, CLUSTER MESSAGE MISMATCH

ACTIVE CODE PRESENT

TEST

ACTION

APPLICABILITY

Turn the ignition on.
Ensure the battery is fully charged.
NOTE: For the purpose of this test, the AECM and ORC modules will be
referred to as an ACM.
SELECT ACTIVE or STORED DTC:

All

ACM - ACTIVE DTC

Go To

ACM - STORED DTC

Go To

NOTE: When reconnecting Airbag system components, the ignition must be
turned off and the battery must be disconnected.

Turn the ignition on.
With the DRBIII

t, read the MIC DTCs.

Does the DRBIII

t display any active Diagnostic Codes?

All

Yes

→ Refer to symptom list for problems related to Instrument Cluster.

→ Go To 3

AIRBAG

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