Chrysler Pacifica. Manual - part 63

TEST

ACTION

APPLICABILITY

With the DRBIII

t, record and erase all DTC’s from all Airbag modules.

If equipped with Passenger Airbag On - Off switch, read the DTC’s in all switch
positions.
If any ACTIVE codes are present they must be resolved before diagnosing any stored
codes.
WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNI-
TION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE-
FORE PROCEEDING.
Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
Look for chaffed, pierced, pinched, or partially broken wires and broken, bent, pushed
out, spread, corroded, or contaminated terminals.
The following additional checks may assist you in identifying a possible intermittent
problem.
Reconnect any disconnected components and harness connector.
WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNI-
TION ON, THEN RECONNECT THE BATTERY.
With the DRBIII

t monitor active codes as you work through the following steps.

WARNING: TO AVOID PERSONAL INJURY OR DEATH, MAINTAIN A SAFE
DISTANCE FROM ALL AIRBAGS WHILE PERFORMING THE FOLLOWING
STEPS.
Wiggle the wiring harness and connectors of the related airbag circuit or component.
If codes are related to the Driver Airbag circuits, rotate the steering wheel from stop
to stop.
IF only stored codes return continue the test until the problem area has been isolated
In the previous steps you have attempted to recreate the conditions responsible for
setting active DTC in question.
Are any ACTIVE DTCs present?

All

Yes

→ Select appropriate symptom from Symptom List.

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

vehicle to customer.

249

AIRBAG

PASSENGER SQUIB 2 SHORT TO GROUND —

Continued

Symptom:

POWER SUPPLY VOLTAGE LOW

When Monitored and Set Condition:

POWER SUPPLY VOLTAGE LOW

When Monitored:

The ACM continuously monitors the Ignition Run - Start and Run Only

circuits to guarantee that the Side Impact Sensors will have sufficient voltage to function
properly.

Set Condition:

Once both ignition feeds into the ACM are determined to be below 7.4

volts, with at least one above 5.5 volts. The code will remain set until at least one ignition
circuit is above 8.0 volts.

POSSIBLE CAUSES

RUN OR RUN - START ACTIVE TROUBLE CODES

RUN AND RUN - START CIRCUITS VOLTAGE LOW

ACM, LOW SUPPLY VOLTAGE

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.
Repair all Ignition Run and Run-Start circuit DTCs before performing this test.
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.

With the DRBIII

t, read the active DTCs.

NOTE: A Diagnostic trouble code will set if the voltage on the Ignition Run
or Run - Start circuits is less than 5.5 volts
Verify that all Ignition Run and Run - Start circuits DTCs have been repaired before
performing the ACTIVE Power Supply Voltage Low DTC.
Any active Run or Run - Start codes?

All

Yes

→ Refer to symptom list for problems related to Fused Ignition

Switch Output Run and Run - Start circuits.
Perform __AIRBAG VERIFICATION TEST - VER 1.

→ Go To 3

250

AIRBAG

TEST

ACTION

APPLICABILITY

WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNI-
TION OFF, DISCONNECT THE BATTERY AND WAIT TWO MINUTES BE-
FORE PROCEEDING.
Disconnect the Airbag Control Module connector(s).
NOTE: Check connectors - Clean and repair as necessary.
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.
Connect the appropriate Load Tool ACM Adaptor to the Airbag Control Module
connector.
WARNING: TO AVOID PERSONAL INJURY OR DEATH, TURN THE IGNI-
TION ON, THEN RECONNECT THE BATTERY.
Using a 12-volt test light connected to ground, check the Run and Run - Start circuits
at the ACM adaptor.
The test light must illuminate brightly. Compare the brightness to that of a direct
connection to the battery.
Does the test light illuminate brightly on both circuits?

All

Yes

→ Go To 4

→ Repair the high resistance in the Fused Ignition Switch Output

Run and Run - Start circuits.
Perform __AIRBAG 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.

251

AIRBAG

POWER SUPPLY VOLTAGE LOW —

Continued

TEST

ACTION

APPLICABILITY

With the DRBIII

t, record and erase all DTC’s from all Airbag modules.

t monitor active codes as you work through the following steps.

All

Yes

→ Select appropriate symptom from Symptom List.

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

vehicle to customer.

252

AIRBAG

POWER SUPPLY VOLTAGE LOW —

Continued

Content .. 61 62 63 64 ..