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Page Title:
VEHICLE HARNESS +5 VOLT SUPPLY (CONT). |
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 TM 9-2320-364-20-1
A5A VEHICLE HARNESS +5 VOLT SUPPLY (CONT).
8.
KNOWN INFO
TEST OPTIONS
CHECK ENGINE light (CEL)
Visual inspection.
Are TPS terminals and
comes ON and stays ON.
connectors (ECM and
ECM supply voltage OK.
REASON FOR QUESTION
4.7 to 5.2 vdc present on
harness side) free from
wire 916 at TPS connector,
damage?
Damage to terminals can affect
terminal C.
signal to TPS.
No open in wires 916 and 952.
No short in wires 916 and 952.
Vernier control connector
MC38 OK.
POSSIBLE PROBLEMS
TPS harness connector faulty.
Repair connectors
TPS faulty.
(Para 7-101).
DDEC ECM faulty.
NO
Verify repair, go to
Wire 240 and/or 241 shorted to
Step 12 of this Fault.
wire 439 and /or chassis
ground.
Wire 952 at vernier control
connector MC38 faulty.
YES
Replace TPS
(Para 7-58).
Verify repair, go to
Step 12 of this Fault.
9.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
CHECK ENGINE light (CEL)
Visual inspection.
on Page 2-393
comes ON and stays ON.
ECM supply voltage OK.
REASON FOR QUESTION
4.7 to 5.2 vdc present on
Are DDEC ECM terminals and
wire 916 at TPS connector,
Damage to terminals can affect
terminal C.
connectors (DDEC ECM and
signal to DDEC ECM.
No open in wires 916 and 952.
harness side) free from
No short in wires 916 and 952.
damage?
Vernier control connector
MC38 OK.
TPS harness connector OK.
TPS OK.
POSSIBLE PROBLEMS
Repair connectors
(Para 7-101) or re-
DDEC ECM faulty.
place ECM (Para
NO
Wire 240 and/or 241 shorted to
7-56).
wire 439 and /or chassis
Verify repair, go to
ground.
Step 12 of this Fault.
Wire 952 at vernier control
connector MC38 faulty.
YES
Replace ECM
(Para 7-56).
Verify repair, go to
Step 12 of this Fault.
2-392
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