Chrysler Concorde 2004 Service Manual page 894

DRIVEABILITY - NGC
Symptom:
P0581-SPEED CONTROL SWITCH #1 HIGH
When Monitored and Set Condition:
P0581-SPEED CONTROL SWITCH #1 HIGH
When Monitored: With the ignition key on. Battery voltage above 10 volts.
Set Condition: The PCM detects an open or short to voltage in the Speed Control Switch
Signal circuit. One Trip Fault.
SPEED CONTROL SWITCH VOLTAGE HIGH
SPEED CONTROL SWITCHES
(V37) S/C SWITCH SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE
(K4) SENSOR GROUND OPEN
PCM
TEST
1 NOTE: Do not press any of the Speed Control Switch buttons.
Ignition on, engine not running.
With the DRBIII , read the Speed Control voltage.
Is the Speed Control voltage above 4.8 volt?
Yes → Go To 2
→ Refer to the INTERMITTENT CONDITION symptom in the
No
2 Turn the ignition off.
Remove the Speed Control Switches from the steering wheel.
Measure the resistance across each Speed Control Switch.
Monitor the ohmmeter while pressing each function button on each switch.
Resume/Accel - 15,400 ohms
Cancel - 909 +/- 9 ohms
Decel (Coast) - 2940 +/- 30 ohms
On/Off - 0 ohms
Set - 6650 +/- 66 ohms
Does the function on the Speed Control Switches have the correct ohm value?
Yes → Go To 3
→ Replace the Speed Control Switch that had the incorrect resis-
No
POSSIBLE CAUSES
ACTION
Driveability category.
Perform POWERTRAIN VERIFICATION TEST VER - 4 - NGC.
tance value.
Perform POWERTRAIN VERIFICATION TEST VER - 4 - NGC.
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APPLICABILITY
All
All