MBE 900 4000 Troubleshooting – Section 17.1 Description of PID 190 – Engine Speed Outside Normal Operating Range

Section 17.1
Description of PID 190 – Engine Speed Outside Normal Operating Range

PID 190 indicates the PLD-MR control unit has detected engine operating outside of the normal range.‪

The diagnostic condition is typically:‪

• Engine Speed High (190 00)

A Crankshaft Position sensor (variable reluctance magnetic pickup) is used to monitor engine speed along with crankshaft position. A camshaft position sensor is used to monitor engine speed and camshaft position for functions such as fuel control strategy. See Figure "Location of Camshaft Position Sensor and Crankshaft Position Sensor" .‪

1. Camshaft Position Sensor (magnetic pickup)‪

2. Crankshaft Position Sensor (magnetic pickup)‪

Figure 1. Location of Camshaft Position Sensor and Crankshaft Position Sensor