DTC Detection Logic
WARNING: This page is about a different car, the 2008 Infiniti EX35. However, it is still accessible from the selected car via links, so may be relevant.
DTC DETECTION LOGIC CHART
| DTC | Item (CONSULT-III screen terms) | A/T CHECK indicator lamp judgment flicker | Diagnostic item is detected when... | Possible cause |
|---|---|---|---|---|
| P1721 | VEH SPD SE/CIR-MTR | - |
|
Harness or connectors (Sensor circuit is open or shorted.) |