CAT 3406E (Prefix 1MM or 2WS) Fault Code: 34 PID: SPN: 64 FMI: 12 Secondary Engine Speed loss of signal
The ECM detects the following conditions:
•The signal for the secondary engine speed/timing sensor is intermittent or lost.
The engine uses two engine speed/timing sensors. One sensor picks up the camshaft gear and the other sensor picks up the crankshaft gear. Both of the engine speed/timing sensors detect the reference for engine speed and timing from a unique pattern on the gear. The ECM counts the time between pulses that is created by the sensor as the gear rotates in order to determine rpm.
Under normal operation, the secondary engine speed/timing sensor is used to determine timing for starting purposes. The secondary engine speed/timing sensor is used to determine when the piston in the No. 1 Cylinder is at the top of the compression stroke. When the timing has been established, the primary engine speed/timing sensor is then used to determine engine speed.
Probable Causes:
1) ECM Connection/Harness
2) Timing sensor or brackets
3) Timing sensor harness
4) ECM Failure
-
download Hitachi Construction Machinery MPDr Ver 3.7.0.0 [10.2020] Diagnostic Software
Hitachi $76.00Rated 0 out of 5 -
ddct Detroit diesel calibration tool (DDCT) v4.5 English Include Calibrations & Metafiles
Detroit $30.00Rated 0 out of 5
Related products
-
CAT Engine Reprogramming Tool for flash programming C1.8, C2.4, C3.8 & C3.3B + Guide
CAT $50.00Rated 0 out of 5 -
CAT CDVR PC Software – Caterpillar Digital Voltage Regulator (CDVR) WINDOWS 10
CAT $45.00Rated 0 out of 5 -
CAT 3126B Fault Code: 231-02 PID: Flash Code 58 SPN: 639 FMI: 2 J1939 Data Incorrect
3126BRated 0 out of 5 -
CAT 3126B Fault Code: 70-05 PID: Flash Code 49 SPN: 729 FMI: 5 Inlet Air Heater Open Circuit
3126BRated 0 out of 5 -
CAT ET 2021A (Caterpillar Electronic Technician) + Factory Password (1 PC )
CAT $65.00Rated 0 out of 5 -
CAT 3126B Fault Code: 111-01 PID: Flash Code 62 SPN: 111 FMI: 17 Low Coolant Level Warning
3126BRated 0 out of 5 -
CAT 3126B Fault Code: 111-11 PID: Flash Code 62 SPN: 111 FMI: 18 Low Coolant Level Warning
3126BRated 0 out of 5
-
SERVICE MANUAL DETROIT DIESEL EPA 07, EPA 10, GHG 14 TROUBLESHOOTING
DETROIT $38.00Rated 0 out of 5 -
SERVICE MANUAL Carrie Starbird TDB/TDS-215 and Starbird PlusTDB/TDS-219
CARRIE $24.00Rated 0 out of 5 -
SERVICE MANUAL INTERNATIONAL ENGINE VT365 (2003 & Older)
INTERNATIONAL ENGINES $24.00Rated 0 out of 5