P1515 Command - Actual Tps Correlation Error - Isuzu 2000 Trooper Workshop Manual

6E–474
TROOPER 6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS

P1515 Command - Actual TPS Correlation Error

Circuit Description
D The throttle position (TP) sensor circuit provides a
voltage signal relative to throttle position (blade angle).
The throttle blade angle will vary about 8 % at
closed throttle to about 92 % at wide open
throttle(WOT).
D The DC motor circuit provides a voltage signal relative
to command throttle position (blade angle).
D This DTC ditects the difference between actual throttle
position and command throttle position.
Conditions for setting the DTC
D The ignition is "ON".
D Throttle actuation mode is normal.
D Command Throttle position - Actual Throttle position is
more than + 5 % for 100 counts within test 1000 test
samples (15.6 m sec) else Actual Throttle position is
less than + 40 % and Command Throttle position -
Actual Throttle position is more than - 5 % or Command
Throttle position - Actual Throttle position is more than
- 20 % for 150 failres within test 1000 test samples
(15.6 m sec).
Action Taken When the DTC Sets
D The PCM will illuminate the malfunction indicator lamp
(MIL) the first time the fault is detected.
Diagnostic Trouble Code (DTC)
D The PCM calculates an air flow value based on idle air
control valve position, throttle position, RPM and
barometric pressure.
D The PCM will store condition which were present when
the DTC was set as Freeze Frame and in the Failure
Records data.
Conditions for Clearing the MIL/DTC
D The PCM will turn the MIL "OFF" on the third
consecutive trip cycle during which the diagnostic has
been run and the fault condtion is no longer present.
D A history DTC P1515 will clear after 40 cosecutive trip
cycle during which the warm up cycles have occurred
without a fault.
D DTC P1515 can be cleared using the Tech 2 "Clear
Info" function or by disconnecting the PCM battery
feed.
Diagnostic Aids
An intermittent may be caused by the following:
D Poor connectons.
D Mis routed harness.
D Rubbed through wire insulation.
D Broken wire inside the insulation.
Check for the following conditions:
D Poor connection at PCM-Inspect harness connectors
for backed out terminals, mproper mating, locks,
improperly formed or damaged terminals, and poor
terminal to wire connection.
D06RY00088