AUTO-CRUISE CONTROL
TSB Revision
ENGINE AND EMISSION CONTROL
17-35
CIRCUIT OPERATION
The throttle position sensor signal is sent to the auto-
cruise control-ECU through this circuit.
The auto-cruise control-ECU receives a signal from
the throttle position sensor at terminal 3.
The signal is OFF when the accelerator pedal is
depressed, and ON when the accelerator pedal is
released.
The throttle position sensor sends a voltage signal to
terminal 1 of the auto-cruise control-ECU.
The voltage depends on throttle opening angle.
DTC SET CONDITIONS
If 2.5 volts or more 0.2 volts or less is output for four
seconds or more.
TROUBLESHOOTING HINTS
The most likely causes for this code to be set are:
•
Malfunction of the throttle position sensor.
•
Damaged harness or connector.
•
Malfunction of the auto-cruise control-ECU.
DIAGNOSIS
Required Special Tools:
•
MB991502: Scan Tool (MUT-II)
•
MB991223: Harness Set
STEP 1. Check the throttle position sensor.
CAUTION
To prevent damage to scan tool MB991502, always turn the
ignition switch to "LOCK" (OFF) position before
connecting or disconnecting scan tool MB991502.
(1) Using scan tool MB991502.
(2) Connect scan tool MB991502 to the data link connector.
(3) Turn the ignition switch to "ON" position.
(4) Read the MFI-DTC.
(5) Turn the ignition switch to "LOCK" (OFF) position.
Q: Is the MFI-DTC P0120 is output?
YES : For 2.4L Engine, refer to GROUP 13A, Diagnosis
−
Diagnostic Trouble Code Chart
P.13A-20
.
For 3.0L Engine, refer to GROUP 13B, Diagnosis
−
Diagnostic Trouble Code Chart
P.13B-18
.
NO : Go to Step 2.
AC001451
CONNECTOR: C-20
AB
AC003599 AB
CONNECTOR: C-28
AC001252
MB991502
16 PIN
AB