Dodge Viper SRT-10 (ZB). Manual — part 320
Symptom:
*PCI BUS COMMUNICATION FAILURE
POSSIBLE CAUSES
WIRING HARNESS INTERMITTENT
OPEN PCI BUS CIRCUIT AT THE DATA LINK CONNECTOR (DLC)
PCI BUS CIRCUIT SHORTED TO VOLTAGE
MODULE SHORT TO VOLTAGE
PCI BUS CIRCUIT SHORTED TO GROUND
MODULE SHORT TO GROUND
TEST
ACTION
APPLICABILITY
1
Note: Determine which modules this vehicle is equipped with before begin-
ning.
Note: When attempting to communicate with any of the modules on this
vehicle, the DRB will display 1 of 2 different communication errors: a NO
RESPONSE message or a BUS +/- SIGNALS OPEN message.
Turn the ignition on.
Using the DRB, attempt to communicate with the following control modules:
Airbag Control Module
Body Control Module
Instrument Cluster
Was the DRBIII
t able to communicate with one or more Module(s)?
All
Yes
→ Go To 2
No
→ Go To 3
2
Turn the ignition off.
Note: Visually inspect the related wiring harness. Look for any chafed,
pierced, pinched, or partially broken wires.
Note: Visually inspect the related wire harness connectors. Look for broken,
bent, pushed out, or corroded terminals.
Note: If the DRB can not communicate with a single module, refer to the
category list for the related symptom.
Were any problems found?
All
Yes
→ Repair wiring harness/connectors as necessary.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Test Complete.
3
Turn the ignition off.
Disconnect the PCM harness connector.
Disconnect the DRB from the Data Link Connector (DLC).
Disconnect the negative battery cable.
Measure the resistance of the PCI Bus circuit between the Data Link Connector
(DLC) and the PCM harness connector.
Is the resistance below 5.0 ohms?
All
Yes
→ Go To 4
No
→ Repair the PCI Bus circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
173
COMMUNICATION
TEST
ACTION
APPLICABILITY
4
NOTE: Reconnect the PCM harness connector and the negative battery
cable.
Turn the ignition on.
Measure the voltage of the PCI Bus circuit at the Data Link Connector (DLC).
Is the voltage above 7.0 volts?
All
Yes
→ Go To 5
No
→ Go To 6
5
Turn the ignition off.
Using a voltmeter, connect one end to the PCI Bus circuit at the DLC, and the other
end to ground.
Note: When performing the next step turn the ignition off (wait one minute)
before disconnecting any module. When the module is disconnected turn
the ignition on to check for a short to voltage.
Turn the ignition on.
While monitoring the voltmeter, disconnect each module the vehicle is equipped with
one at a time.
Is the voltage steadily above 7.0 volts with all the modules disconnected?
All
Yes
→ Repair the PCI Bus circuit for a short to voltage.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the module that when disconnected the short to voltage
was eliminated.
Perform BODY VERIFICATION TEST - VER 1.
6
Turn the ignition off.
Disconnect the negative battery cable.
Using a ohmmeter, connect one end to the PCI Bus circuit at the DLC, and the other
end to ground.
While monitoring the ohmmeter, disconnect each module the vehicle is equipped with
one at a time.
NOTE: Total bus resistance to ground thru all of the modules is typically
between 350 to 1000 ohms. The more modules on the bus, the lower the total
bus resistance will be.
Is the resistance below 150.0 ohms with all the modules disconnected?
All
Yes
→ Repair the PCI Bus circuit for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the module that when disconnected the short to ground
was eliminated.
Perform BODY VERIFICATION TEST - VER 1.
174
COMMUNICATION
*PCI BUS COMMUNICATION FAILURE —
Continued
Symptom:
*DECKLID AJAR CIRCUIT OPEN
POSSIBLE CAUSES
DECKLID AJAR SWITCH GROUND CIRCUIT OPEN
OPEN DECKLID AJAR SWITCH
DECKLID AJAR SWITCH SENSE CIRCUIT OPEN
BODY CONTROL MODULE - DECKLID AJAR CIRCUIT OPEN
TEST
ACTION
APPLICABILITY
1
Disconnect the Decklid Ajar switch connector.
Using a 12-volt Test Light connected to 12-volts, probe the Ground circuit and test for
continuity.
Does the light illuminate?
All
Yes
→ Go To 2
No
→ Repair the Decklid Ajar Switch Ground circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
2
Disconnect the Decklid Ajar Switch connector.
Connect a jumper wire between the Sense circuit and the Ground circuit.
With the DRBIII
t in Inputs/Outputs, read the DECKLID AJAR SW state.
Does the DRBIII
t display CLOSED?
All
Yes
→ Replace the Decklid Ajar Switch.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 3
3
Disconnect the Decklid Ajar Switch harness connector.
Disconnect the BCM C3 harness connector.
Measure the resistance of the Sense circuit between the BCM C3 connector and the
Decklid Ajar Switch connector.
Is the resistance below 5.0 ohms?
All
Yes
→ Go To 4
No
→ Repair the Decklid Ajar Switch Sense circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
4
If there are no possible causes remaining, view repair.
All
Repair
Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1.
175
DOOR AJAR
Symptom:
*DECKLID AJAR CIRCUIT SHORTED TO GROUND
POSSIBLE CAUSES
DECKLID AJAR SWITCH SHORTED TO GROUND
DECKLID AJAR SWITCH SENSE CIRCUIT SHORTED TO GROUND
BODY CONTROL MODULE - DECKLID AJAR SHORTED
TEST
ACTION
APPLICABILITY
1
With the DRBIII
t in Inputs/Outputs, read the DECKLID AJAR SW state.
While monitoring the DRBIII
t, disconnect the Decklid Ajar Switch connector.
Did the Switch State change from CLOSED to OPEN?
All
Yes
→ Replace the Decklid Ajar Switch.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 2
2
Disconnect the Decklid Ajar Switch connector.
Disconnect the BCM C3 harness connector.
Using a 12-volt test light connected to 12-volts, probe the Sense circuit and test for
a short to ground.
Does the test light illuminate?
All
Yes
→ Repair the Decklid Ajar Switch Sense circuit for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 3
3
If there are no possible causes remaining, view repair.
All
Repair
Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1.
176
DOOR AJAR
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