Chrysler Pacifica CS 2004 Service Manual page 267

P1593-SPEED CONTROL SWITCH STUCK —
TEST
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 resistance value?
Yes → Go To 3
→ Replace the Speed Control Switch that had the incorrect resis-
No
3 Measure the voltage on the (V37) S/C Signal circuit at the Speed Control harness
connector.
Is the is the voltage above 5.0 volts?
Yes → Repair the short to battery voltage in the (V37) S/C Signal circuit.
→ Go To 4
No
4 NOTE: The measurement must be taken from both Speed Control Switch
harness connector.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Measure the resistance of the (V37) S/C Signal circuit from the Speed Control
harness connector to the appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms for both measurement?
Yes → Go To 5
→ Repair the open in the (V37) S/C Signal circuit.
No
5 NOTE: The measurement must be taken from both Speed Control Switch
harness connectors.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Measure the resistance of the (K4) Sensor ground circuit from the Speed Control
harness connector to the appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms for both measurements?
Yes → Go To 6
→ Repair the open in the (K4) Sensor ground circuit.
No
ACTION
tance value.
Perform POWERTRAIN VERIFICATION TEST VER - 4 - NGC.
Perform POWERTRAIN VERIFICATION TEST VER - 4 - NGC.
Perform POWERTRAIN VERIFICATION TEST VER - 4 - NGC.
Perform POWERTRAIN VERIFICATION TEST VER - 4 - NGC.
DRIVEABILITY - NGC
Continued
261
APPLICABILITY
All
All
All
All