Chrysler Concorde 2004 Service Manual page 889

Symptom:
P0579-SPEED CONTROL SWITCH #1 PERFORMANCE
SPEED CONTROL SWITCH STATUS
SPEED CONTROL SWITCHES
(V37) S/C SWITCH SIGNAL CIRCUIT SHORTED TO SENSOR GROUND
(V37) S/C SWITCH SIGNAL CIRCUIT SHORTED TO GROUND
(V37) S/C SWITCH SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE
(V37) S/C SWITCH SIGNAL CIRCUIT OPEN
(K4) SENSOR GROUND OPEN
PCM
TEST
1 Ignition on, engine not running.
With the DRBIII , monitor each switch function for the Speed Control Switches.
Press and release each Speed Control Button.
- Resume/Accel
- Cancel
- Decel (Coast)
- On/Off
- Set
Does each switch function change status when pressing and then depressing each
switch?
Yes → Refer to the INTERMITTENT CONDITION symptom in the
→ Go To 2
No
2 Turn the ignition off.
Remove the Speed Control Switches from the steering wheel.
Measure the resistance across each Switch 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.
DRIVEABILITY - NGC
231
APPLICABILITY
All
All