Beginning Test Function No. 1
Using scan tool, read and note all codes until first code is repeated. See DIAGNOSTIC TROUBLE CODES (DTCS) table.
DIAGNOSTIC TROUBLE CODES (DTCS)
| DTC | Fault |
|---|---|
| 111 | No Fault |
| DTCs 112 & 122 DTCs 112 & 122 | Abnormal Speed Signal |
| DTCs 112 & 122 DTCs 112 & 122 | Speed Below Minimum/No Signal |
| DTC 211 DTC 211 | Voltage Speed/Cruise Control Unit Malfunction |
| DTC 212 DTC 212 | Vacuum Pump or Regulator Circuit Malfunction |