Chrysler Voyager. Manual — part 169
ORC RUN ONLY DRIVER OVER VOLT
When Monitored:
The FCM uses a microprocessor controlled transistor (high side driver)
to supply power to the ORC. The microprocessor monitors the high side driver (HSD)
battery voltage when the ignition is in the Run position.
Set Condition:
The code will set if the microprocessor senses HSD battery voltage is over
30 volts.
ORC RUN ONLY DRIVER SHORT TO GROUND
When Monitored:
The FCM uses a microprocessor controlled transistor (high side driver)
to supply power to the ORC. The microprocessor monitors the high side driver (HSD)
circuit for short to ground when the ignition is in the Run position.
Set Condition:
The code will set within 1 second, if the microprocessor senses high HSD
internal temperature. The high temperature is caused by short to ground.
POSSIBLE CAUSES
ACM, LOSS OF IGNITION RUN ONLY
ACM, ORC RUN ONLY CIRCUIT OPEN
FCM, ORC RUN ONLY CIRCUIT OPEN
IPM, ORC RUN ONLY CIRCUIT OPEN
ORC RUN ONLY DRIVER CIRCUIT OPEN
FCM, ORC RUN ONLY CIRCUIT SHORT
IPM, ORC RUN ONLY CIRCUIT SHORT
ACM, ORC RUN ONLY CIRCUIT SHORT
ORC RUN ONLY CIRCUIT SHORT
HIGH BATTERY VOLTAGE
ORC RUN ONLY OVER VOLTAGE
STORED CODE OR INTERMITTENT CONDITION
ACTIVE CODE PRESENT
103
AIRBAG
LOSS OF IGNITION RUN ONLY —
Continued
TEST
ACTION
APPLICABILITY
1
Ensure the battery is fully charged.
Turn the ignition on.
NOTE: For the purpose of this test, the AECM and ORC modules will be
referred to as an ACM.
SELECT ONE:
All
ACM - ACTIVE DTC
ACM - STORED DTC
FCM - ACTIVE DTC
FCM - STORED DTC
NOTE: When reconnecting Airbag system components, the ignition must be
turned off and the battery must be disconnected.
2
With the DRBIII
t, read the active FCM DTCs.
Are there any active ORC RUN ONLY DRIVER codes?
All
Yes
→ Go To 3
No
→ WARNING: TURN THE IGNITION OFF, DISCONNECT THE
BATTERY AND WAIT TWO MINUTES BEFORE PROCEED-
ING. Replace the Airbag Control Module in accordance with
Service Manuals.
Perform AIRBAG VERIFICATION TEST - VER 1.
3
Select the active FCM RUN ONLY DTC displayed on the DRB.
All
1. ORC RUN ONLY DRIVER OPEN
2. ORC RUN ONLY DRIVER OVER VOLTAGE
3. ORC RUN-START SHORT TO GROUND
4. ORC RUN ONLY DRIVER OVER CURRENT
5. ORC RUN ONLY DRIVER OVER TEMP
104
AIRBAG
LOSS OF IGNITION RUN ONLY —
Continued
TEST
ACTION
APPLICABILITY
4
WARNING: TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND
WAIT TWO MINUTES BEFORE PROCEEDING.
WARNING: IF THE OCCUPANT RESTRAINT CONTROLLER IS DROPPED
AT ANY TIME, IT MUST BE REPLACED.
Disconnect the Airbag Control Module connector(s).
NOTE: Check connectors - Clean and repair as necessary.
Connect the appropriate Load Tool Adaptor to the Airbag Control Module connector.
Connect a test light to ground and the ORC Run Only Driver circuit at the Airbag
Control Module connector.
WARNING: TURN THE IGNITION ON, THEN RECONNECT THE BATTERY.
Turn the ignition off, wait 90 seconds and then turn the ignition ON.
With the DRBIII
t, read the active FCM DTCs.
Does the DRB show an active ORC RUN ONLY DRIVER OPEN code?
All
Yes
→ Go To 5
No
→ WARNING: MAKE SURE THE BATTERY IS DISCONNECTED,
THEN WAIT TWO MINUTES BEFORE PROCEEDING. Replace
the Airbag Control Module in accordance with Service Instruc-
tions.
Perform AIRBAG VERIFICATION TEST - VER 1.
5
WARNING: TURN THE IGNITION OFF, DISCONNECT THE BATTERY AND
WAIT TWO MINUTES BEFORE PROCEEDING.
Disconnect the Front Control Module.
NOTE: Check connectors - Clean and repair as necessary.
Measure the resistance of the ORC Run - Start Driver circuit between the Front
Control Module connector and the Airbag Control Module adapter.
Is the resistance below 1.0 ohms?
All
Yes
→ Replace the Front Control Module.
Perform AIRBAG VERIFICATION TEST - VER 1.
No
→ Go To 6
6
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 ORC Run Only Driver circuit between the IPM C7
connector and the Airbag Control Module adapter.
Is the resistance below 1.0 ohms?
All
Yes
→ Replace the IPM.
Perform AIRBAG VERIFICATION TEST - VER 1.
No
→ Repair the open ORC Run Only Driver circuit.
Perform AIRBAG VERIFICATION TEST - VER 1.
7
Measure the battery voltage.
Is the voltage above 30.0 volts?
All
Yes
→ 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.
105
AIRBAG
LOSS OF IGNITION RUN ONLY —
Continued
TEST
ACTION
APPLICABILITY
8
Disconnect the Front Control Module.
Measure the resistance of the ORC Run Only Driver circuit between the Front
Control Module connector and ground.
Is the resistance below 500K ohms?
All
Yes
→ Go To 9
No
→ Replace the Front Control Module.
Perform AIRBAG VERIFICATION TEST - VER 1.
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 ORC Run Only Driver circuit between the IPM C7
connector and ground.
Is the resistance below 500K ohms?
All
Yes
→ Go To 10
No
→ Replace the IPM.
Perform AIRBAG VERIFICATION TEST - VER 1.
10
Disconnect the Airbag Control Module connector(s).
WARNING: IF THE OCCUPANT RESTRAINT CONTROLLER IS DROPPED
AT ANY TIME, IT MUST BE REPLACED.
NOTE: Check connectors - Clean and repair as necessary.
Connect the appropriate Load Tool Adaptor to the Airbag Control Module connector.
Measure the resistance of the ORC Run Only Driver circuit between the IPM C7
connector and ground.
Is the resistance below 500K ohms?
All
Yes
→ WARNING: MAKE SURE THE BATTERY IS DISCONNECTED,
THEN WAIT TWO MINUTES BEFORE PROCEEDING. Replace
the Airbag Control Module in accordance with Service Instruc-
tions.
Perform AIRBAG VERIFICATION TEST - VER 1.
No
→ Repair the ORC Run Only Driver circuit shorted to ground.
Perform AIRBAG VERIFICATION TEST - VER 1.
106
AIRBAG
LOSS OF IGNITION RUN ONLY —
Continued
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