Engine Magnetic Crankshaft Speed/Position Lost Both of Two Signals
– Data Erratic, Intemittent, or Incorrect |
Overview
CODE | REASON | EFFECT |
Fault Code: 115 PID: P190 SPN: 612 FMI: 2 LAMP: Red SRT: |
Engine Magnetic Crankshaft Speed/Position lost both of two signals – |
Fueling to the injectors is disabled, and the engine can not |
Engine Speed Sensor and Camshaft Position Sensor Circuit
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Circuit Description
The main engine speed sensor (crankshaft position sensor) and the backup engine speed sensor (camshaft position sensor) are connected to the engine wiring harness.
Component Location
The main engine speed sensor (crankshaft position sensor) reads a tone wheel that is mounted to the front of the engine crankshaft. The backup engine speed sensor (camshaft position sensor) reads a tone wheel that is inside the front cover.
Shop Talk
The main engine speed sensor (crankshaft position sensor) and the backup engine speed sensor (camshaft position sensor) are located in close proximity to one another. The same sensor is used in both locations. (Connector key is the same.) A P-clip on the engine wiring harness prohibits the harness connectors from being connected to the incorrect sensors. However, if the P-clip is omitted, it is possible to plug the wiring harness connectors into the incorrect sensors. If this occurs, the ECM will detect the problem and the engine will not start. Once the connector problem is corrected, the engine can be started and the fault code will become inactive.
Refer to Troubleshooting Fault Code t05-115