Failure Code [Ca386] Sensor1 Supply Voltage High Error - Komatsu PC88MR-10 Shop Manual

Failure code [CA386] Sensor1 Supply Voltage High Error

Action level Failure code
L03 CA386
Detail of
High voltage occurs in sensor power supply 1 circuit.
failure
Closes EGR valve and opens variable flow turbocharger fully.
Action of
Signals from EGR valve sensor and variable flow turbocharger sensor are ignored.
controller
Limits engine output and runs engine.
Problem on
Engine output lowers.
machine
Related
Method of reproducing failure code: Turn starting switch to ON position.
information
No. Cause
Abnormally high sensor
1
supply voltage
PC88MR-10
Sensor1 Supply Voltage High Error
Failure
(Engine controller system)
Procedure, measuring location, criteria, and remarks
Perform troubleshooting for failure code [CA352].
40 Troubleshooting
Troubleshooting by failure code (Display of code)
(PC88MR-CA386-400-A-Z0-A)
40-173