Section04ENGINEMANAGEMENT(15034-TEC)
Subsection 02 (DIAGNOSTIC PROCEDURES)
RESPONSIBLE MODULE
FAULT
CODE
INFORMATION
CENTER
MPEM ECM
BEEPER
CODE
WARNING
LIGHT
MESSAGE
DISPLAYED
(INFO CTR)
FAULT
DETECTED
WHILE ENGINE
NOT RUNNING
FAULT
DETECTED
WHILE ENGINE
RUNNING
LIMP
HOME
MODE
NORMAL
OPERATION
RESUME
WHEN...
P1611 — —
P+ Test of ISC
output signal
failed
15 Off
CHK
ENG
Y Y N
Fault is
recovered
Possible cause:
Intake pressure sensor or TPS failure.
Sensors power line shorted to ground or to battery.
Damaged ECM.
Service action:
Key on and off.
Reset closed TPS.
Check battery voltage.
Replace TPS.
Replace idle bypass valve.
P1655 — —
DESS line shorted
to 12 V
15 Flash
CHK
ENG
Y N N N/A
Possible cause:
Damaged safety switch, damaged circuit wires, damaged connector or damaged ECM output pins.
Service action:
Remove DESS key and check for an open circuit on system circuit B-38.
P1656 — —
DESS line shorted
to ground
15 Flash
CHK
ENG
Y N N N/A
Possible cause:
Damaged safety switch, damaged circuit wires, damaged connector or damaged ECM output pins.
Service action:
Remove DESS key and check for an open circuit on system circuit B-38.
P1660 —
Bilge pump
shorted to ground
or open circuit
— 5 N/A N/A Y N N N/A
Possible cause:
Damaged bilge pump, damaged circuit wires, damaged connector or damaged MPEM output pins.
Service action:
Check system circuits 2-20 and 2-3.
Connect or disable bilge pump in setting page.
P1661 —
Bilge pump
shortedto12V
— 5 N/A N/A Y Y N N/A
Possible cause:
Damaged bilge pump, damaged circuit wires, damaged connector or damaged MPEM output pins.
Service action:
Check system circuits 2-20 and 2-3.
P1670 —
Buzzer – Short to
Battery Voltage
— 15 N/A N/A Y Y N N/A
Possible cause:
Damaged connector or damaged MPEM output pins.
Service action:
Check system circuit 1-20.
100 smr2005-012
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