Autodata - Diagnostic Trouble Codes Fault locations and probable causes - 2004 edition

I Engine management
Year: 1998-03 I
Engine code: 6VE1
System: MFI
General information
Refer to the front of this manual for general test conditions,
terminology, detailed descriptions of wiring faults and a
general trouble shooter for electrical and mechanical faults.
Engine control module (ECM) incorporates self-diagnosis
function.
Accessing
The engine control module (ECM) fault mernory can only be
accessed using diagnostic equipment connected to the data
link connector (DLC).
Erasing
Ensure ignition switched OFF.
Disconnect battery earth lead for 30 seconds minimum.
Reconnect battej earth lead.
Repeat checking procedure to ensure no data remains in
ECM fault memory.
NOTE: Disconnecting battery may erase memory from electronic
units (e.g. radio, clock).
The engine control module (ECM) fault memory can also be
erased using diagnostic equipment connected to the data
link connector (DLC).
Trouble code identification
EOBD
type
PO
PI106
PI 107
Fault locatlon
Refer to EOBD trouble code table
Manifold absolute pressure (MAP) sensor -
circuit malfunctionlintermittent voltaqe high
Probable cause
Manifold absolute pressure (MAP) sensor - Wiring, MAP sensor, mechanical fault, ECM
circuit malfunctionlintermittent voltage low
Pllll Intake air temperature (IAT) sensor - circuit Wiring, IAT sensor, ECM
malfunctionlintermittent voltage high
PI112 Intake air temperature (IAT) sensor - circuit Wiring, IAT sensor, ECM
malfunctionfintermittent voltage low
PI114
PI115
PI 120
PI121
Engine coolant temperature (ECT) sensor -
circuit malfunctionlintemittent voltage high
Engine coolant temperature (ECT) sensor -
circuit malfunctionlintermittent voltage low
Throttle motor position sensor ? - circuit
malfunction
Throttle position (TP) sensor - circuit
malfunctionlintermrttent voltaae hiah
-
Wiring, MAP sensor, mechanical fault, ECM
Wiring, ECT sensor, ECM
Wiring, ECT sensor, ECM
Wiring open circuitlshort circuit to earthlshort circuit to
positive, throttle control unit, ECM
Wiring, TP sensor, mechanical fault, ECM