Suzuki XL7 2007 Service Manual page 259

DTC P2105
Diagnostic Instructions
• Perform the "Diagnostic System Check - Vehicle
Diagnostic Information: " prior to using this diagnostic
procedure.
• Review "Strategy Based Diagnosis: " for an overview
of the diagnostic approach.
• "Diagnostic Procedure Instructions - Vehicle
Diagnostic Information: " provides an overview of
each diagnostic category.
DTC Descriptors
DTC P2105: Throttle Actuator Control (TAC) System -
Forced Engine Shutdown
Circuit/System Description
The engine control module (ECM) controls the throttle
valve by applying a varying voltage to the control circuits
of the throttle actuator control (TAC) motor. The ECM
monitors the duty cycle that is required to actuate the
throttle valve. The ECM monitors the throttle position
(TP) sensors 1 and 2 to determine the actual throttle
valve position.
Conditions for Running the DTC
• The ECM power down process in the last drive cycle
completely finished.
• DTC P2105 runs continuously once the above
condition is met.
Conditions for Setting the DTC
• The ECM detects an incorrect voltage level at the
ignition voltage supply circuits for greater than 4
seconds.
OR
• The ECM detects an internal communication error.
Action Taken When the DTC Sets
DTC P2105 is a Type A DTC.
Engine General Information and Diagnosis:
Conditions for Clearing the DTC
DTC P2105 is a Type A DTC.
Diagnostic Aids
• If DTC P2105 sets, the engine will stall and not restart
until the ignition is cycled OFF and then ON.
• Additional DTCs set when P2105 sets.
• The ignition key will not be able to be removed from
the ignition switch until another ignition cycle occurs.
Reference Information
Schematic Reference
"Engine Controls Schematics"
Connector End View Reference
• "Engine Control Module Connector End Views"
• "Engine Controls Connector End Views"
Description and Operation
"Engine Control Module Description: "
Electrical Information Reference
• "Circuit Testing: "
• "Connector Repairs: "
• "Testing for Intermittent Conditions and Poor
Connections: "
• "Wiring Repairs: "
DTC Type Reference
"Powertrain Diagnostic Trouble Code (DTC) Type
Definitions"
Scan Tool Reference
• "Scan Tool Data List - Engine Controls - 3.6L (LY7)"
• "Scan Tool Data Definitions - Engine Controls - 3.6L
(LY7)"
• "Scan Tool Output Controls - Engine Controls - 3.6L
(LY7)"
Circuit/System Verification
1. Start the engine. Rapidly move the accelerator pedal
from the rest position, to wide open throttle position,
back to the rest position. Repeat the procedure a few
times. DTC P2105 should not set.
2. If the vehicle passes the Circuit/System Verification
test, then operate the vehicle within the conditions
for running the DTC. You may also operate the
vehicle within the conditions that are captured in the
Freeze Frame/Failure Records List.
1A-154