Proheat M80 - 3.2 COMPONENT MECHANICAL OR ELECTRICAL PROBLEMS

PROHEAT M-SERIES SERVICE MANUAL
3-37
Fuel Nozzle Go to page 3-6, Step 3.
Fuel Shut-off Valve Go to page 3-8, Step 4.
Fuel Regulator Go to page 3-11, Step 5.
Air Compressor Go to page 3-12, Step 6.
Fuel Supply Pump Go to page 3-15, Step 7.
Ignition Electrodes Go to page 3-18.
PCM Fuse
Protects the 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 PCM.
Test Procedure – Voltage supply:
a) Disconnect the power harness at the 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
3.2
3.2.1
3.2.2
3.2.3
3.2.4
3.2.5
3.2.6
3.2.7
Figure 3-42: Power Harness
PIN A – RED (+)
PIN B – BLACK (-)