OTC Tools Code Scanner Manual Del Usuario página 23

Pressure (BP) sensor –
signal voltage out of
specification (engine off) or
not at normal vacuum levels
(engine running).
Throttle Position (TP)
sensor – signal voltage out
of Self-Test specification.
Air Charge Temperature
(ACT) sensor or Vane Air
Temperature (VAT) sensor –
signal voltage is out of
specification (engine off) or
not at normal levels (engine
running).
or,
Electronic Distributorless
Ignition System (EDIS) fault –
failure in coil 1 primary
circuit.
Knock Sensor (KS) signal
not detected during Engine
Run Self-Test (Dynamic
Response test).
Vane Air Flow (VAF) sensor
or Mass Air Flow (MAF)
sensor – signal voltage out
of Self-Test specifications.
or,
Transmission Oil
Temperature (TOT) sensor
– signal voltage is out of
Self-Test specification.
Vehicle Speed Sensor
(VSS) – signal voltage is
too low.
or,
Electronic Distributorless
Ignition System (EDIS) fault
– failure in coil 2 primary
circuit.
Vane Air Temperature
(VAT) sensor – signal
voltage out of Self-Test
specification.
or,
Electronic Distributorless
Ignition System (EDIS) fault
– failure in coil 3 primary
circuit.
or,
Distributorless Ignition
System (DIS) fault – Loss of
right side TACH signal.
Vehicle Speed Sensor (VSS)
– signal voltage is too low.
EGR Valve Position (EVP)
sensor or Pressure
Feedback EGR (PFE)
sensor – signal voltage is
below minimum
specification.
or,
EGR Vacuum Regulator
(EVR) solenoid circuit
problems.
or,
EGR valve is not in its
normal closed position.
EGR Valve Position (EVP)
sensor or Pressure
Feedback EGR (PFE)
sensor – signal voltage is
below closed limit or has
gone beyond set limits.
or,
Problems with EGR valve
controlling.
EGR Valve Position (EVP)
sensor or Pressure
Feedback EGR (PFE)
sensor indicates EGR valve
is not opening.
or,
EGR Valve Position (EVP)
sensor or Pressure
Feedback EGR (PFE)
sensor indicates EGR valve
not seated (closed) properly.
EGR Valve Position (EVP)
sensor or Pressure
Feedback EGR (PFE)
sensor: signal voltage out of
Self-Test specification limits,
or,
signal voltage above closed
limit during normal engine run
operation,
or,
signal indicates insufficient
EGR flow.
EGR Valve Position (EVP)
sensor or Pressure
Feedback EGR (PFE)
sensor: signal voltage above
Self-Test specification limits,
or,
signal voltage too high
during normal engine run
operation.
or,
RPM too low to perform
EGR test (Engine Run Self-
Test).
23
Idle Tracking Switch (ITS)
circuit open.
Transaxle problem: lock-up
failed in torque convertor,
or,
convertor bypass clutch not
applying properly.
Exhaust Gas Oxygen
(EGO) sensor: voltage
signal always "lean" (low
value) – does not switch.
Exhaust Gas Oxygen (EGO)
sensor: voltage signal
always "rich" (high value) –
does not switch.
Exhaust Gas Oxygen
(EGO) sensor: voltage
signal "lean" (low value)
during wide-open -throttle
driving condition,
or,
sensor has cooled down
and may not have
responded properly during
Engine Run Self-Test.
Problems in Thermactor Air
Control system.
Thermactor air flow is
always upstream during
Engine Run Self-Test.
or,
Distributorless Ignition
System (DIS) or Electronic
Distributorless Ignition
System (EDIS) problems –
primary circuit failure in coil
1, 2, 3 or 4.
Thermactor Air System
unable to bypass air (vent
to atmosphere).
or,
Distributorless Ignition
System (DIS) or Electronic
Distributorless Ignition
System (EDIS) problems –
primary circuit failure in coil
2.
Exhaust Gas Oxygen
(EGO) sensor signal
voltage indicates "rich"
during "lean" air/fuel
conditions.
or,