Genie S-60 Service Manual page 112

Section 5 • Troubleshooting Flow Charts
FAULT CODE CHART
Fault Code Problem
Crankshaft
Position
(CKP) sensor
52
senses extra
or missing
pulses.
Camshaft
Position
(CMP) sensor
53
senses
unknown
pattern.
ECM Fault -
54 Illegal
Operation.
5 - 6
Cause
The CKP and CMP
sensors work together;
if one is bad, the other
one won't work
correctly and causes
the ECM to detect a
fault. The ECM uses
the signal pulses from
the CKP and CMP
sensors to initiate
sequential fuel
injection.
The CMP and CKP
sensors work together;
if one is bad, the other
one won't work
correctly and causes
the ECM to detect a
fault. The ECM uses
the signal pulses from
the CKP and CMP
sensors to initiate
sequential fuel
injection.
The ECM received an
illegal instruction signal
from one or more of the
sensors and has gone
into a default program
and then return to
normal operation
Genie S-60 & Genie S-65
Third Edition • First Printing
Solution
Check for shorted wires or poor terminal
connections from the CKP and CMP
sensors to the ECM OR replace the CKP or
CMP sensor.
Check for shorted wires or poor terminal
connections from the CKP and CMP
sensors to the ECM OR replace the CKP or
CMP sensor.
Replace the ECM.
Part No. 65196