ignition CHRYSLER VOYAGER 2001 Workshop Manual

TEST ACTION APPLICABILITY
1 Ensure that the battery is fully charged.
Turn the ignition on.
With the DRBIIIt, read the active FCM DTCs.
NOTE: The SIACM RUN-START DRIVER OPEN code may not set until the
ignition key is turned off.
Turn the ignition off.
With the DRBIIIt, read the active SIACM FCM Diagnostic Trouble Codes.
Select the active SIACM FCM code displayed on the DRB.All
1. SIACM RUN-START DRIVER OPEN
Go To 2
2. SIACM RUN-START DRIVER OVER VOLTAGE
Go To 7
3. SIACM RUN-START SHORT TO GROUND
Go To 8
4. SIACM RUN-START DRIVER OVER CURRENT
Go To 8
5. SIACM RUN-START DRIVER OVER TEMP
Go To 8
NOTE: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
2WARNING: TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND
WAIT TWO MINUTES BEFORE PROCEEDING.
WARNING: IF THE SIDE IMPACT AIRBAG CONTROL MODULE IS
DROPPED AT ANY TIME, IT MUST BE REPLACED.
Disconnect the Left Side Impact Airbag Control Module.
NOTE: When the ignition key is turned off, the FCM will supply a diagnostic
voltage to the SIACM Run-Start Driver circuit for approximately 60 sec-
onds.
Measure the voltage of the SIACM Run-Start Driver circuit between the Left Side
Impact Airbag Control Module connector and ground.
Turn the ignition switch ON and observe the diagnostic voltage on the SIACM
Run-Start circuit.
Select the results from the list below?All
Is the voltage between 1.0 and 2.2 volts
Replace the Front Control Module.
Perform BODY VERIFICATION TEST - VER 1.
Is the voltage between 2.4 and 5.0 volts
Go To 3
No Voltage present?
Go To 4
NOTE: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
48
AIRBAG
FCM, SIACM RUN-START DRIVER OPEN - ACTIVE ÐContinued

TEST ACTION APPLICABILITY
3 Disconnect the Right Side Impact Airbag Control Module.
NOTE: Check connectors - Clean and repair as necessary.
Measure the voltage of the SIACM Run-Start Driver circuit at the Right Side Impact
Airbag Control Module connector.
Is there any voltage present?All
Ye s®Replace the Left and Right Side Impact airbag Control Modules.
Perform AIRBAG VERIFICATION TEST - VER 1.
No®Replace the Left Side Impact Airbag Control Module and repair
the open SIACM Run-Start Driver circuit between the splice and
the Right Side Impact Airbag control Module connector.
Perform AIRBAG VERIFICATION TEST - VER 1.
NOTE: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
4 Disconnect the Right Side Airbag Control Module.
NOTE: Check connectors - Clean and repair as necessary.
Measure the voltage of the SIACM Run-Start Driver circuit between the Right Side
Impact Airbag Control Module connector and ground.
Is there any voltage present?All
Ye s®Replace the Right Side Impact Airbag Control Module and repair
the open SIACM Run-Start Driver circuit between the splice and
the Left Side Impact Airbag Control Module connector.
Perform AIRBAG VERIFICATION TEST - VER 1.
No®Go To 5
NOTE: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
5 Disconnect the Front Control Module.
Disconnect the Right Side Impact Airbag Control Module.
NOTE: Check connectors - Clean and repair as necessary.
Measure the resistance of the SIACM Run-Start Driver circuit between the Front
Control Module connector and the Right SIACM connector.
Is the resistance below 1.0 ohms ?All
Ye s®Replace the Front Control Module.
Perform AIRBAG VERIFICATION TEST - VER 1.
No®Go To 6
NOTE: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
49
AIRBAG
FCM, SIACM RUN-START DRIVER OPEN - ACTIVE ÐContinued

TEST ACTION APPLICABILITY
6 Gain access to the connectors on the bottom of the IPM.
Disconnect the IPM C7 connector.
Disconnect the Left Side Impact Airbag Control Module.
NOTE: Check connectors - Clean and repair as necessary.
Measure the resistance of both SIACM Run-Start Driver circuits between the IPM
C7 connector and the Right connector.
Is the resistance below 1.0 ohms ?All
Ye s®Replace the IPM.
Perform AIRBAG VERIFICATION TEST - VER 1.
No®Repair the open SIACM Run-Start Driver circuit.
Perform AIRBAG VERIFICATION TEST - VER 1.
NOTE: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
7 Measure the battery voltage.
Is the voltage above 30.0 volts?All
Ye s®Refer to Charging Category for the P1594 Charging System Too
High symptom.
Perform AIRBAG VERIFICATION TEST - VER 1.
No®Replace the Front Control Module.
Perform AIRBAG VERIFICATION TEST - VER 1.
8 Disconnect the Right Side Impact Airbag Control Module.
NOTE: Check connectors - Clean and repair as necessary.
Measure the resistance of the SIACM Run-Start Driver circuit between the Front
Control Module connector and ground.
Is the resistance below 500.0 Kohms?All
Ye s®Go To 9
No®Replace the Front Control Module.
Perform AIRBAG VERIFICATION TEST - VER 1.
NOTE: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
9 Gain access to the connectors on the bottom of the IPM.
Disconnect the IPM C7 connector.
NOTE: Check connectors - Clean and repair as necessary.
Measure the resistance of the SIACM Run-Start Driver circuit between the IPM C7
connector and ground.
Is the resistance below 500.0 Kohms?All
Ye s®Go To 10
No®Replace the IPM.
Perform AIRBAG VERIFICATION TEST - VER 1.
NOTE: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
50
AIRBAG
FCM, SIACM RUN-START DRIVER OPEN - ACTIVE ÐContinued

TEST ACTION APPLICABILITY
10 The SIACM Run-Start Driver circuit must be SHORTED for the result of this test to
be valid
Disconnect the IPM C7 connector.
Disconnect the Left Side Impact Airbag Control Module.
NOTE: Check connectors - Clean and repair as necessary.
Measure the resistance of the SIACM Run-Start Driver circuit between the IPM C7
connector and ground.
Is the resistance below 500.0 Kohms?All
Ye s®Go To 11
No®Replace the Left Side Impact Airbag Control Module..
Perform AIRBAG VERIFICATION TEST - VER 1.
NOTE: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
11 Gain access to the connectors on the bottom of the IPM.
Disconnect the IPM C7 connector.
Disconnect the Right Side Impact Airbag Control Module.
NOTE: Check connectors - Clean and repair as necessary.
Measure the resistance of the SIACM Run-Start Driver circuit between the IPM C7
connector and ground.
Is the resistance below 500.0 Kohms?All
Ye s®Repair the SIACM Run-Start Driver circuit shorted to ground.
Perform AIRBAG VERIFICATION TEST - VER 1.
No®Replace the Right Side Impact Airbag Control Module.
Perform AIRBAG VERIFICATION TEST - VER 1.
NOTE: When reconnecting airbag system components the Ignition must be
turned off and the Battery must be disconnected.
51
AIRBAG
FCM, SIACM RUN-START DRIVER OPEN - ACTIVE ÐContinued

Symptom List:
LEFT SIACM ACCELEROMETER 1 - ACTIVE
LEFT SIACM ACCELEROMETER 1 - STORED
LEFT SIACM ACCELEROMETER 2 - ACTIVE
LEFT SIACM ACCELEROMETER 2 - STORED
LEFT SIACM INTERNAL 1 - ACTIVE
LEFT SIACM INTERNAL 1 - STORED
LEFT SIACM OUTPUT DRIVER 1 - ACTIVE
LEFT SIACM OUTPUT DRIVER 1 - STORED
LEFT SIACM, LOSS OF IGNITION RUN-START - ACTIVE
LEFT SIACM, NO PCI TRANSMISSION - ACTIVE
Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be LEFT SIACM ACCELEROMETER
1 - ACTIVE.
When Monitored and Set Condition:
LEFT SIACM ACCELEROMETER 1 - ACTIVE
When Monitored: When the ignition on, the Left SIACM on board diagnostics continu-
ously performs internal circuit tests.
Set Condition: This DTC will set if the Left SIACM identifies an out of range internal
circuit
LEFT SIACM ACCELEROMETER 1 - STORED
When Monitored: When the ignition on, the Left SIACM on board diagnostics continu-
ously performs internal circuit tests.
Set Condition: This DTC will set if the Left SIACM identifies an out of range internal
circuit.
LEFT SIACM ACCELEROMETER 2 - ACTIVE
When Monitored: When the ignition on, the Left SIACM on board diagnostics continu-
ously performs internal circuit tests.
Set Condition: This DTC will set if the Left SIACM identifies an out of range internal
circuit.
LEFT SIACM ACCELEROMETER 2 - STORED
When Monitored: When the ignition on, the Left SIACM on board diagnostics continu-
ously performs internal circuit tests.
Set Condition: This DTC will set if the Left SIACM identifies an out of range internal
circuit.
52
AIRBAG

LEFT SIACM INTERNAL 1 - ACTIVE
When Monitored: When the ignition on, the Left SIACM on board diagnostics continu-
ously performs internal circuit tests.
Set Condition: This DTC will set if the Left SIACM identifies an out of range internal
circuit.
LEFT SIACM INTERNAL 1 - STORED
When Monitored: When the ignition on, the Left SIACM on board diagnostics continu-
ously performs internal circuit tests.
Set Condition: This DTC will set if the Left SIACM identifies an out of range internal
circuit.
LEFT SIACM OUTPUT DRIVER 1 - ACTIVE
When Monitored: When the ignition on, the Left SIACM on board diagnostics continu-
ously performs internal circuit tests.
Set Condition: This DTC will set if the Left SIACM identifies an out of range internal
circuit.
LEFT SIACM OUTPUT DRIVER 1 - STORED
When Monitored: When the ignition on, the Left SIACM on board diagnostics continu-
ously performs internal circuit tests.
Set Condition: This DTC will set if the Left SIACM identifies an out of range internal
circuit.
LEFT SIACM, LOSS OF IGNITION RUN-START - ACTIVE
When Monitored: With the ignition in the run or start position the Left SIACM monitors
the SIACM Run-Start Driver circuit for proper system voltage. This is an active trouble
code only.
Set Condition: If the voltage on the SIACM Run-Start Driver circuit is below 4.0 volts,
the code will set.
LEFT SIACM, NO PCI TRANSMISSION - ACTIVE
When Monitored: With the ignition in the On position and the Left SIACM transmitting
information on the PCI BUS.
Set Condition: The code will set, if the Left SIACM cannot detect the Left SIACM
transmitting information on the PCI BUS for 4 consecutive seconds. NOTE: Any PCI Bus
Failure will cause this code to set.
53
AIRBAG
LEFT SIACM ACCELEROMETER 1 - ACTIVE ÐContinued

POSSIBLE CAUSES
LEFT SIDE IMPACT AIRBAG CONTROL MODULE, ACTIVE OR STORED CODE
TEST ACTION APPLICABILITY
1WARNING: TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND
WAIT TWO MINUTES BEFORE PROCEEDING.
WARNING: IF THE SIDE IMPACT AIRBAG CONTROL MODULE IS
DROPPED AT ANY TIME, IT MUST BE REPLACED.
If there are no possible causes remaining, view repair.All
Repair
Replace the Left Side Impact Airbag Control Module in accordance
with Service Instructions. WARNING: Make sure the battery is
disconnected and wait 2 minutes before proceeding. Erase DTCs
in all Modules.
Perform AIRBAG VERIFICATION TEST - VER 1.
NOTE: When reconnecting Airbag system components, the ignition must be
turned off and the battery must be disconnected.
54
AIRBAG
LEFT SIACM ACCELEROMETER 1 - ACTIVE ÐContinued

Symptom List:
LEFT SIACM, NO PCI TRANSMISSION - STORED
LEFT SIACM, NO PCM MESSAGE - STORED
LEFT SIACM, SEAT SQUIB CIRCUIT OPEN - STORED
LEFT SIACM, SEAT SQUIB CIRCUIT SHORT - STORED
LEFT SIACM, SEAT SQUIB SHORT TO BATTERY - STORED
LEFT SIACM, SEAT SQUIB SHORT TO GROUND - STORED
ORC, INTERROGATE LEFT SIACM - STORED
ORC, NO LEFT SIACM MESSAGE - STORED
Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be LEFT SIACM, NO PCI TRANS-
MISSION - STORED.
When Monitored and Set Condition:
LEFT SIACM, NO PCI TRANSMISSION - STORED
When Monitored: With the ignition in the On position and the Left SIACM transmitting
information on the PCI BUS.
Set Condition: The code will set if, the Left SIACM cannot detect the Left SIACM
transmitting information on the PCI BUS for 4 consecutive seconds. NOTE: Any PCI Bus
Failure will cause this code to set.
LEFT SIACM, SEAT SQUIB CIRCUIT OPEN - STORED
When Monitored: When the ignition is ON, the Left SIACM monitors the Left Seat Squib
circuits for high resistance.
Set Condition: The Left SIACM has detected an open circuit or high resistance on the
Left Seat Squib circuits.
LEFT SIACM, SEAT SQUIB CIRCUIT SHORT - STORED
When Monitored: When the ignition is on, the Left SIACM monitors the resistance of the
Left Seat Squib circuits.
Set Condition: The Left SIACM has detected low resistance in the Left Seat Squib
circuits.
LEFT SIACM, SEAT SQUIB SHORT TO BATTERY - STORED
When Monitored: When the ignition is on, the Left SIACM monitors the voltage of the
Left Seat Squib circuits.
Set Condition: The Left SIACM has detected high voltage on the Left Seat Squib circuits.
55
AIRBAG

LEFT SIACM, SEAT SQUIB SHORT TO GROUND - STORED
When Monitored: When the ignition is on, the Left SIACM monitors the resistance of the
left Seat Squib circuits for low resistance.
Set Condition: The Left SIACM has detected a short to ground in the left Seat Squib
circuits.
ORC, INTERROGATE LEFT SIACM - STORED
When Monitored: With ignition on, the ORC monitors the PCI Bus for a Left SIACM
status message containing the airbag warning lamp9On or OFF9request. The status
message is sent to the ORC once each second or upon any change in the active DTCs.
Set Condition: The Code will set, if the ORC receives an9Lamp On9status message from
the Left SIACM. NOTE: This indicates that there was an active diagnostic trouble code in
the Left SIACM.
ORC, NO LEFT SIACM MESSAGE - STORED
When Monitored: With ignition on, the ORC monitors the PCI Bus for the Left SIACM
status message. The Left SIACM transmits the status message to the ORC at 1 - second
intervals.
Set Condition: If the ORC fails to see the Left SIACM status message on the PCI Bus for
10 seconds the code will set.
56
AIRBAG
LEFT SIACM, NO PCI TRANSMISSION - STORED ÐContinued

POSSIBLE CAUSES
CHECKING FOR ACTIVE LEFT SIACM DTCS
STORED CODE PRESENT
TEST ACTION APPLICABILITY
1 Turn ignition on.
NOTE: Ensure the battery is fully charged.
Active codes must be resolved before diagnosing stored codes.
With the DRBIIIt, record and erase all DTCs from all modules.
With the DRB III monitor active codes as you work through the system.
Wiggle the wiring harness and connectors of the Airbag System.
NOTE: Check connectors - Clean and repair as necessary.
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 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
Ye s®Select appropriate symptom from Symptom List and continue
with diagnosis.
No®No problem found at this time. NOTE: interrogate the ORC and
Right SIACM for DTCs. Erase all codes in all airbag modules
before returning vehicle to customer.
57
AIRBAG
LEFT SIACM, NO PCI TRANSMISSION - STORED ÐContinued