Section 06 ENGINE MANAGEMENT (RFI)
Subsection 03 (COMPONENT ADJUSTMENT, INSPECTION AND REPLACEMENT)
VCM
CONNECTOR
ECM
CONNECTOR
PIN PIN
INJECTOR
5-31 A-15
1(MAG)
5-15
A-33
2(PTO)
smr2005-056-013_a
– Repair wire/connector if defective. If wires
test good and there was a fault code, try a
new ECM. If wires test good and there was
no fault code, try a new VCM.
– If it does not read proper voltage, check conti-
nuity of injector supply and signal circuits as per
following table.
VCM CONNECTOR
PIN
INJECTOR
7-F
1(MAG),pin1
7-G 2(PTO),pin1
smr2005-056-014_a
VCM
CONNECTOR
ECM
CONNECTOR
PIN PIN
INJECTOR
5-31 A-15
1(MAG)
5-15
A-33
2(PTO)
smr2005-056-013_a
– Repair wire/connector if defective. If wires
test good and there was a fault code, try a
new ECM. If wires test good and there was
no fault code, try a new VCM.
Resistance Test
Ensure injector is connected and safety lanyard is
removed from DESS post. Disconnect the VCM
connectors 5 and 7.
Using a multimeter, check resistance value be-
tween terminals as follows.
VCM
CONNECTOR
COMPONENT
PIN
RESISTANCE
@20°C(68°F)
Fuel injector
cylinder 1
(MAG)
5-32 7-F
Fuel injector
cylinder 2
(PTO)
5-16
7-G
2.3 - 2.5
smr2005-056-014_a
If resistance value is incorrect, check/repair wiring
harness/connectors. Repair/replace as necessary.
Recheck resistance value. If still not within spec-
ifications, replace fuel injector.
134 smr2005-056
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