NTC-5A: Checking For A Speed Control Denied Message
NOTE:
Perform NTC-1A: CHECKING SPEED CONTROL OPERATION
before proceeding.
- At this time speed control switch and servo functions appear to operate properly. Using scan tool, monitor speed control output status. Road test vehicle at speeds of more than 35 MPH.
- Attempt to set speed control. See SCAN TOOL DENIED STATUS table. Items listed in table will not allow speed control to set. The last or most recent cause for speed control not to set is indicated by denied status. Correct fault and recheck system operation.
SCAN TOOL DENIED STATUS
| Denied Message | Reason |
|---|---|
| ON/OFF | PCM Does Not See An ON Signal From Switch At PCM Terminal No. 41. |
| SPEED | Vehicle Speed As Seen By PCM Terminal No. 66 Is Not Greater Than 30 MPH. |
| RPM | Engine RPM Is Excessively High. |
| BRAKE | Brake Switch Sense Circuit Is Open Indicating To PCM Brakes Are Applied. PCM Terminal No. 62 (Sense Circuit) Is Grounded Through Brake Pedal Switch When Brakes Are Released. |
| P/N | Park/Neutral Switch Sense Circuit Is Grounded Indicating To PCM Transmission Is Not In Gear. PCM Terminal No. 76 (Sense Circuit) Is Grounded Through Park/Neutral Switch When Transmission Is In Park Or Neutral. |
| RPM/SPD | PCM Senses Excessive Engine RPM For A Given Vehicle Speed. |
| SOL FLT | PCM Senses A Servo Solenoid Circuit Trouble Code That Is Maturing Or Set In Memory. |