Section 08 ENGINE MANAGEMENT (4-TEC)
Subsection 03 (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...
P0461 —
Fuel level sensor
circuit out of
range
— 4 Flash SENSOR Y Y N
Fault is
recovered
Possible cause:
Damaged sensor, damaged circuit wires, damaged connector or damaged MPEM output pins.
Service action:
Check for 2.6 (full tank) to 93.6 ohms (empty tank) between system circuits 1-1 and 1-21.
P0462 —
Fuel level sensor
shorted to ground
— 4 Flash SENSOR Y Y N
Fault is
recovered
Possible cause:
Damaged sensor, damaged circuit wires, damaged connector or damaged MPEM output pins.
Service action:
Check for no continuity between system circuit 1-21 and battery ground.
P0463 —
Fuel level sensor
circuit shorted to
12 V or open
circuit
— 4 Flash SENSOR Y Y N
Fault is
recovered
Possible cause:
Damaged sensor, damaged circuit wires, damaged connector or damaged MPEM output pins.
Service action:
Check voltage between system circuit 1-21 and battery ground.
— —
DLA output stage
cutoff memory
difference
15 Off
CHK
ENG
— — — —
— —
DLA output stage
fault
15 Off N/A Y N N
Fault is
recovered
— — DLA open circuit 15 Off N/A Y N N
Fault is
recovered
P0505
— —
DLA short circuit
to 12 V
15 Off N/A Y N N
Fault is
recovered
Possible cause:
Damaged actuator, damaged circuit wires, damaged connector or damaged ECM output pins.
Service action:
Check for approximately 50 ohms between pins A and D and also between pins B and C of the idle bypass valve.
Check for damaged circuit wires.
Check for approximately 50 ohms between pins A-36 and A-35 and also between pins A-37 and A-38.
Check for damaged connector, damaged ECM output pins or ECM failure.
P0513 — —
DESS
®
incorrect
key
15 Off N/A Y N/A N/A N/A
Possible cause:
DESS key not programmed. Wrong DESS key used. DESS key failure.
Service action:
Program the DESS key. Clean DESS key and DESS post contacts.
454 smr2004-Complete Line Up
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