P1565

DTC P1565 Cruise Servo Position Sensor Diagnostic Chart:

Cruise Control Servo Wiring Schematic:

CIRCUIT DESCRIPTION
The Powertrain Control Module (PCM) applies 5 volts to the cruise control servo position sensor through PCM terminal "BF4" and receives a returned frequency from servo terminal "B" (CKT 398). Depending on the actual servo position, the AC frequency will vary indicating to the PCM the position of the servo blade. The PCM uses this information to control the servo position when cruise is engaged.

DIAGNOSTIC TROUBLE CODE (DTC) P1565 WILL SET WHEN
^ CKT 398 is opened, grounded or shorted to voltage.

Or

^ CKT 399 is opened.

ACTION TAKEN (PCM WILL DEFAULT TO)
The PCM will not allow cruise control operation with a current DTC P1565 set. DTC P1565 does not illuminate the Malfunction Indicator Lamp (MIL).

DIAGNOSTIC AIDS
An intermittent may be caused by a poor connection, rubbed through wire insulation, or a wire broken inside the insulation.

Check for:
^ Poor connection or damaged harness - Inspect harness connectors for backed out terminals, improper mating, broken locks, improperly formed or damaged terminals, poor terminal to wire connection, and damaged harness.