Chrysler Crossfire. Manual — part 603
(P0571) STOP LAMP SWITCH SIGNAL PERFORMANCE (CONTINUED)
For a complete Controller Antilock Brake Circuit Diagram, (Refer to 5 - BRAKES/ELECTRICAL - SCHEMATICS AND
DIAGRAMS).
Diagnostic Test
1.
DTC PRESENT IN CONTROLLER ANTILOCK BRAKE (CAB)
This is an informational DTC letting you know that a DTC(s) is stored
in the CAB.
Using the DRB III
T
, read the ABS DTC(s) and refer to the ABS Cate-
gory to perform the appropriate symptom.
Erase this DTC from the PCM after all CAB DTC(s) have been
repaired.
PCM Diagnostic Information complete.
Continue
Test Complete.
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ENGINE - ELECTRICAL DIAGNOSTICS
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(P0575) SPEED CONTROL SWITCH INPUT CIRCUIT
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ENGINE - ELECTRICAL DIAGNOSTICS
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(P0575) SPEED CONTROL SWITCH INPUT CIRCUIT (CONTINUED)
When Monitored and Set Condition
•
When Monitored: With the ignition on.
•
Set Condition: Anytime the Powertrain Control Module (PCM) doesn’t sense the proper voltage on the Speed
Control Switch Off Signal circuit.
POSSIBLE CAUSES
FUSE 10 OPEN
FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
SPEED CONTROL SWITCH SIGNAL CIRCUIT SHORT TO GROUND
SPEED CONTROL SWITCH OFF SIGNAL CIRCUIT OPEN
SPEED CONTROL SWITCH
POWERTRAIN CONTROL MODULE
For a complete Powertrain Control Module Circuit Diagram, (Refer to 9 - ENGINE - SCHEMATICS AND DIA-
GRAMS).
Diagnostic Test
1.
PRE-DIAGNOSTIC CHECK OUT
Note: Always perform diagnostics with a fully charged battery.
Note: Check connectors — Clean/repair as necessary. Poor pin to
terminal connections can set DTCs.
Note: Check for applicable TSBs related to the problem.
Turn the ignition on.
With the DRB III
T
, read PCM DTCs.
Using the wiring diagram/schematic as a guide, inspect the wiring and
connectors. Repair as necessary.
Perform this procedure prior to symptom diagnosis.
Continue
Go To 2
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ENGINE - ELECTRICAL DIAGNOSTICS
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(P0575) SPEED CONTROL SWITCH INPUT CIRCUIT (CONTINUED)
2.
CHECK FOR CURRENT DTC
Note: If the PCM detects and stores a DTC, the PCM also stores
the engine/vehicle operating conditions under which the DTC was
set. Some of these conditions are displayed on the DRB III
T
at the
same time the DTC is displayed.
Note: Before erasing stored DTCs, record these conditions.
Attempting to duplicate these conditions may assist when check-
ing for an active DTC.
Turn the ignition on.
With the DRB III
T
, erase PCM DTCs.
Note: It maybe necessary to road test the vehicle for this DTC to
set.
With the DRB III
T
, read PCM DTCs.
Did this DTC set again?
Yes
>> Go To 3
No
>> Go To 7
3.
PCM
Turn the ignition off.
Disconnect the PCM C4 harness connector.
Note: Check connectors — Clean/repair as necessary.
Turn the ignition on.
Measure the voltage of the Speed Control Off Signal circuit at the
PCM C4 harness connector.
Is the voltage above 10 volts?
Yes
>> Replace and program the Powertrain Control Module.
(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES/POWERTRAIN
CONTROL
MODULE
-
REMOVAL).
Perform POWERTRAIN VERIFICATION TEST - VER 5.
No
>> Go To 4
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ENGINE - ELECTRICAL DIAGNOSTICS
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