2514-Crankcase Vent Heater Control Circuit Open: Notes
For complete wiring diagrams, refer to SYSTEM WIRING DIAGRAMS .
- When Monitored:
With the ignition on and the Crankcase Vent Heater command off.
- Set Condition:
The ECM does not detect voltage on the Crankcase Vent Heater Control circuit for 2.0 seconds.
| Possible Causes |
|---|
| INTERMITTENT DTC |
| CRANKCASE VENT HEATER CONTROL CIRCUIT SHORTED TO GROUND |
| CRANKCASE VENT HEATER CONTROL CIRCUIT OPEN OR HIGH RESISTANCE |
| FUSED ASD RELAY OUTPUT CIRCUIT 2 OPEN OR HIGH RESISTANCE |
| CRANKCASE VENT HEATER |
| ENGINE CONTROL MODULE (ECM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Engine Control (ECM) - Standard Procedure