Proheat M80 - Manual (Page 70)

PROHEAT G-I PCM SERVICE MANUAL 4-39
Fuel Nozzle
Go to page 4-6, Step 3.
Fuel Shut-off Valve
Go to page 4-8, Step 4.
Fuel Regulator
Go to page 4-11, Step 5.
Air Compressor
Go to page 4-12, Step 6.
Fuel Supply Pump
Go to page 4-17, Step 7.
Ignition Electrodes
Go to page page 4-20.
G-I PCM Fuse
Protects the G-I PCM against high current. When switched on, the PROHEAT
will NOT start, attempt to start, or indicate a diagnostic code.
Troubleshoot a Blown Fuse based on:
1. Voltage supply to the PROHEAT.
2. Voltage at the output connections of the G-I PCM.
Test Procedure – Voltage supply:
a) Disconnect the power harness at the G-I PCM.
b) Using a multimeter set for voltage, measure across pins A and B of the
harness connector for system voltage.
If there is no voltage, check the OEM voltage supply. Consult OEM for
service requirements.
If the correct voltage (system voltage 12 – 24) is measured, go to item 'c'.
COMPONENT MECHANICAL
OR ELECTRICAL PROBLEMS 4.2
4.2.1
4.2.2
4.2.3
4.2.4
4.2.5
4.2.6
4.2.7
Figure 4-45: Power Harness
PIN A – RED (+)
PIN B – BLACK (-)