PRO-S Rev1104
21
DIAGNOSTICS
The information listed in Table 3 is to aid in troubleshooting a problem. The
diagnostic code will be shown in the
SETTING
display on the control module.
Table 3. Diagnostic Codes
Code
Problem
Probable Cause
>No voltage at the interlock input
>Datalink cable not connected /
incorrectly wired
>Broken wire / bad connector contact
on datalink cable
E2
Bad data on datalink
>Noise interference (radio frequency or
electrical)
>Datalink cable not connected /
incorrectly wired
>Engine not running / ignition key on
[Non-Electronic engines]
RPM signal not detected
>Broken wire / bad connector contact
on alternator cable
>No voltage at the interlock input
>Internal datalink problem - bad control
module
>Datalink shorted
>Transducer cable not connected
>Broken wire / bad connector contact
on transducer cable
>Defective pressure transducer
E6
N/A
N/A
>Low supply water, intake line problem,
valve closed, pump not primed, etc.
>Defective pressure transducer
E3
Cannot transmit over
datalink (No response
from ECM)
E4
E1
No communication on
datalink
[Electronic engines] RPM
data not detected on
datalink
E5
Discharge pressure
transducer not detected
E7
Not able to raise pump
pressure from idle to set
pressure
