Suzuki XL7 2007 Service Manual page 1769

Circuit/System Description
If the vehicle is equipped with automatic transmission
and a floor mounted console gear shift, it has an
electronic park lock system (EPL). The EPL system
purpose is to prevent the ignition key from being turned
to the OFF position when the transmission is in any
position other than PARK and the vehicle may still be
moving. The EPL system consists of an ignition lock
cylinder solenoid, and a park position switch that is
located in the A/T shift lock control switch. The ignition
lock cylinder solenoid contains a pin that is spring loaded
to mechanically prevent the ignition key cylinder from
being turned to the lock position when it is not energized.
The park position switch receives voltage from the body
control module (BCM) when the ignition is turned ON.
When the transmission shift selector is in PARK, the park
position switch closes and energizes the ignition lock
cylinder solenoid (actuator) retracting the pin, allowing
the ignition switch to be turned OFF. If vehicle power is
lost, and/or the transmission is not in the Park position
the operator will not be able to turn the ignition key to the
lock position and will not be able to remove the ignition
key from the column.
Diagnostic Aids
• Check for the proper operation of the transmission
shift selector.
• Manually pushing in the ignition lock cylinder solenoid
will allow the ignition key to be turned to OFF.
• The ignition lock cylinder solenoid is part of the
ignition lock cylinder case.
• The park switch is part of the shift lock solenoid/switch
assembly.
Reference Information
Schematic Reference
"Ignition Lock Schematics: "
Connector End View Reference
"Master Electrical Component List: "
Electrical Information Reference
• "Circuit Testing: "
• "Connector Repairs: "
• "Testing for Intermittent Conditions and Poor
Connections: "
• "Wiring Repairs: "
Steering Wheel and Column:
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at
the ignition lock cylinder solenoid.
2. Test for less than 1.0 ohm of resistance between the
ground circuit of the connector and ground.
➢ If greater than 1.0 ohm, test the ground circuit for
an open/high resistance.
3. Ignition ON, shift selector in PARK then out of PARK,
verify that a test lamp illuminates in PARK and does
not illuminate out of PARK between the steering
column key cylinder lock solenoid control circuit and
ground.
➢ If the test lamp does not illuminate properly, test the
solenoid control and park switch ignition voltage
circuits for a short to ground, open/high resistance
or short to voltage. If the circuits test normal,
replace the park switch.
4. If all circuits test normal, test or replace the ignition
lock cylinder solenoid.
Component Testing
Park Switch
1. Ignition OFF, disconnect the harness connector at
the park switch.
2. Test for infinite resistance between the output
terminal and the ignition terminal with the switch in
the open position.
➢ If not the specified value, replace the park switch.
3. Test for less than 2 ohms of resistance between the
output terminal and the ignition terminal with the
switch in the closed position.
➢ If greater than the specified value, replace the park
switch.
Repair Instructions
Perform the "Diagnostic Repair Verification - Vehicle
Diagnostic Information: " after completing the diagnostic
procedure.
• "Shift Lock Solenoid/Switch Assembly Replacement: "
• "Ignition Lock Cylinder Case Replacement: "
6B-6