Chart C-17 Cruise Control System Check

Cruise Servo And Cruise Engage Switch Wiring Circuit:

Circuit Description:

Cruise control operation is one of the functions which is PCM controlled. The PCM receives input signals from the C/C engagement switches, the brake switch, the vehicle speed sensor, the TP sensor and the servo position sensor. The PCM processes these inputs and sends output signals to the servo to open or close its vent and vac solenoid valves to control vehicle speed.

PART 1 OF 2

Chart C-17 - Cruise Control System Check (Part 1 Of 2):

PART 2 OF 2

Chart C-17 - Cruise Control System Check (Part 2 Of 2):

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 PCM harness connectors for backed out terminals, improper mating, broken locks, improperly formed or damaged terminals, poor terminal to wire connection and damaged harness.
^ If one or more of the following DTCs are stored, cruise control may be disabled. Repair any DTCs before diagnosing the cruise control system.

* 16 System Voltage High or Low
* 21 TP Sensor High
* 22 TP Sensor Low
* 24 VSS Circuit
36 Transaxle Shift Problem
38 TCC Brake Switch Circuit Problem
61 Cruise Vent Solenoid Circuit Problem
62 Cruise Vacuum Solenoid Circuit Problem
65 Cruise S.P.S. Circuit Problem
67 Cruise Switch Problem
68 Cruise System Problem

* MIL (Service Engine Soon) is turned "ON" when this DTC is detected.