P1596

Tests 1 - 3:

Tests 4 - 8:

Test 9:

SYMPTOM
P1596 - SPEED CONTROL SWITCH ALWAYS HIGH

WHEN MONITORED
With the ignition key ON.

SET CONDITION
An open condition is detected in the Speed Control ON/OFF switch circuit.

POSSIBLE CAUSES
- S/C wiring harness intermittent defect
- S/C ON/OFF switch defective
- S/C switch ground circuit open
- S/C switch signal circuit shorted to voltage
- S/C switch signal circuit open PCM to clockspring
- S/C switch signal circuit open at clockspring
- Powertrain Control Module defective