6E1-20
ENGINE AND EMISSION CONTROL SYSTEM
SH410
CODE NO.13 (P0120) TP SENSOR CIRCUIT
(SIGNAL VOLTAGE HIGH OR LOW)
1. ECM (PCM)
2. ECM (PCM) connector
3. TP sensor
4. TP sensor connector
5. To MAP sensor
6. To other sensors
NOTE:
When Code No.11 (P0105), 13 (P0120), 18 (P0110) and
19 (P0115) are indicated together, it is possible that “B/
Or” wire is open or “E02-9” terminal connection are
poor.
STEP
ACTION
YES
NO
1
1) Disconnect TP sensor connector with igni-
tion switch OFF.
2) Check voltage between “a” wire terminal of
TP sensor connector and ground with igni-
tion switch ON.
Is voltage about 4 – 5 V?
Go to Step 2.
“Gr/R” wire open or short.
Poor “E02-1” connection.
If wire and connection are OK,
substitute a known-good ECM
(PCM) and recheck.
2
1) Check voltage between “b” wire terminal of
TP sensor connector and ground with igni-
tion switch ON.
Is voltage about 4 – 5 V?
Go to Step 3.
“Gr” wire open or short.
Poor “E02-6” connection.
If wire and connection are OK,
substitute a known-good ECM
(PCM) and recheck.
3
1) Connect “b” and “c” wire terminal of TP
sensor connector using service wire.
2) Check voltage between “b” wire terminal of
TP sensor coupler and ground with ignition
switch ON.
Is voltage about 0 V?
Go to Step 4.
“B/Or” wire open.
Poor “E02-9” connection.
If wire and connection are OK,
substitute a known-good ECM
(PCM) and recheck.
4
1) Perform TP SENSOR INSPECTION in this
section.
Is TP sensor in good condition?
Poor connection of TP
sensor connector ter-
minals.
If connection is OK,
substitute a known-
good ECM (PCM) and
recheck.
Faulty TP sensor.