Component Tests and General Diagnostics

Cruise Control (ECM/PCM) Input Test

1. Connect the Honda Diagnostic System (HDS) to the data link connector (DLC) Initial Inspection and Diagnostic Overview.

2. Turn the ignition switch to ON (II).

3. Make sure the HDS communicates with the vehicle and the engine control module (ECM)/powertrain control module (PCM). If it doesn't communicate, troubleshoot the DLC circuit Testing and Inspection.

4. Go to PGM-FI, and check for DTCs Initial Inspection and Diagnostic Overview.

5. Do the following tests while monitoring parameters in the PGM-FI DATA LIST with the HDS.

NOTE: Intermittent failures are often caused by loose circuit connections. While monitoring cruise control inputs, flex their circuit wires, and note if any of the test results change.