CRUISE CONTROL SYSTEMS DTCS

OEM Code

Test Procedures

Description

3 ⁽⁴⁾

Control Valve Circuit Of Actuator Is Abnormal

3 5 ⁽⁴⁾

Release Valve Circuit Of Actuator Is Abnormal

4 ⁽²⁾, ⁽⁴⁾

Speed Sensor Signal Not Sent To CC ECU For 140 Milliseconds Or Longer

23 ⁽⁵⁾

⁽²⁾, 3 4 ⁽³⁾,9 ⁽⁴⁾

Vehicle Speed Decreased 10 MPH Or More Below Speed Set During Cruise Control Operation

2 ⁽⁴⁾

SET/COAST & RESUME/ACCEL Switch Signal Stay On Simultaneously

2 ⁽⁴⁾

Control Does Not Turn Off Before Switching

⁽⁴⁾

Faulty CC ECU

Normal

1 2 5 7 or 8 6 ⁽²⁾,3 ⁽³⁾, ⁽⁴⁾

Indicator Light Flashes 5 Times, Cruise Control Will Not Set Or Operate

⁽¹⁾	Perform appropriate test in order given. See DIAGNOSIS & TESTING

⁽²⁾	Check speedometer cable function.

⁽³⁾	Check vacuum hoses and brake fluid level.

⁽⁴⁾	Check CC ECU. See CRUISE CONTROL ECU CIRCUIT TEST Replace CC ECU as necessary and recheck system operation.

⁽⁵⁾	If speed set can be maintained when speed control switch is again set to SET/COAST position, there is no malfunction.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Cruise Control Systems DTCS