Suzuki XL7 2007 Service Manual page 1375

DTC C0161
DTC Descriptor
DTC C0161 00: Antilock Brake System (ABS) Brake
Switch/Sensor Circuit not Plausible.
Diagnostic Fault Information
Perform the "Diagnostic System Check - Vehicle
Diagnostic Information: " prior to using this diagnostic
procedure.
Circuit/System Description
The brake pedal position (BPP) sensor is an input to the
body control module (BCM). The BCM then sends a
serial data message to the electronic brake control
module (EBCM) and other electronic control modules.
The BPP sensor is a potentiometer type sensor with a 5-
volt reference circuit and a low reference circuit.
Conditions for Running the DTC
• The ignition is ON.
• The vehicle speed is greater than 16 km/h (10 mph).
• The ignition voltage is greater than 9.5 volts.
Conditions for Setting the DTC
• The vehicle speed is greater than 40 km/h (25 mph)
and then slow down to less than 3 Km/h (2 mph) 4
times and the brake pedal signal does not show any
change in state.
• The vehicles speed is greater than 20 Km/h (12 mph)
and the brake pedal signal indicates an active state
for continuously more than 6 minutes.
• The brake light switch signal coming from the module
sends invalid data to the EBCM in terms of the rolling
count value.
Action Taken When the DTC Sets
The ABS/TCS remains functional.
Conditions for Clearing the DTC
• The condition for the DTC is no longer present and
the DTC is cleared with a scan tool.
• The EBCM automatically clears the history DTC when
a current DTC is not detected in 100 consecutive drive
cycles.
Diagnostic Aids
The DTC C0161 00 can be set if the vehicle has been
driven with the brake applied during acceleration.
Reference Information
Schematic Reference
"Antilock Brake System Schematics"
Connector End View Reference
"Antilock Brake System Connector End Views"
Description and Operation Reference
"ABS Description and Operation"
Electrical Information Reference
• "Circuit Testing: "
• "Connector Repairs: "
• "Testing for Intermittent Conditions and Poor
Connections: "
• "Wiring Repairs: "
Scan Tool Reference
"Scan Tool Data List - Antilock Brake System" for EBCM
Circuit/System Verification
With the ignition ON, use a scan tool to display DTCs for
the BCM.
➢ If DTC C0277 or C0890 and C0297 are present, go
to "Diagnostic System Check - Vehicle Diagnostic
Information: ".
➢ If no DTCs are present, go to Diagnostic Aids.
Repair Verification
"Diagnostic Repair Verification - Vehicle Diagnostic
Information: "
ABS: 4E-25