Suzuki XL7 2007 Service Manual page 2375

DTC C0277 or DTC C0890
Diagnostic Instructions
• Perform the "Diagnostic System Check - Vehicle Diagnostic Information: " prior to using this diagnostic procedure.
• "Strategy Based Diagnosis: "
• "Diagnostic Procedure Instructions - Vehicle Diagnostic Information: "
DTC Descriptor
DTC C0277 06: Brake Pedal Position Sensor Circuit Short to Ground or Open
DTC C0277 07: Brake Pedal Position Sensor Circuit Voltage Above Threshold
DTC C0277 09: Brake Pedal Position Sensor Circuit Rate of Change Above Threshold
DTC C0277 4B: Brake Pedal Position Sensor Calibration Not Learned
DTC C0890 03: Voltage Below Threshold
DTC C0890 07: Voltage Above Threshold
Diagnostic Fault Information
Circuit
Brake pedal position sensor circuit
Brake pedal position sensor 5-volt reference
Brake pedal position sensor low reference
Circuit/System Description
The body control module (BCM) applies a ground
through the brake pedal position sensor (BPPS) low
reference circuit to the BPPS. The BCM supplies a 5-volt
reference through the brake sensor reference voltage
circuit to the BPPS. When the brake pedal is being
applied, the BPPS then sends a variable voltage through
the brake sensor signal circuit to the BCM.
Conditions for Running the DTC
The ignition is ON.
Conditions for Setting the DTC
C0277 06
The BCM detects an open or a short to ground on the
BPPS circuit.
C0277 07
The BCM detects short to voltage on the BPPS circuit.
C0277 09
The BCM detects the BPPS reading is erroneous.
C0277 4B
The BCM detect that the BPPS is not calibrated.
C0890 03
The BCM detects a voltage that is lower then 5 volts on
the BPPS 5-volt reference circuit.
C0890 07
The BCM detects a voltage that is greater then 5 volts on
the BPPS 5-volt reference circuit.
Short to Open/High
Ground Resistance
C0277 06 C0277 06
C0890 03 C0890 03
C0890 03 C0890 03
Action Taken When the DTC Sets
The stop lamps will not function correctly.
Conditions for Clearing the DTC
The BCM clears these codes from current when the fault
is removed from the system.
Diagnostic Aids
If DTC C0277 4B is set, perform the BPPS calibration. If
the DTC resets, then perform the circuit/system testing.
Reference Information
Schematic Reference
"Exterior Lights Schematics"
Connector End View Reference
"Lighting Systems Connector End Views"
Electrical Information Reference
• "Circuit Testing: "
• "Connector Repairs: "
• "Testing for Intermittent Conditions and Poor
Connections: "
• "Wiring Repairs: "
Scan Tool Reference
• "Scan Tool Output Controls - Lighting"
• "Scan Tool Data List - Lighting"
• "Scan Tool Data Definitions - Lighting"
Lighting Systems:
Signal
Short to Voltage
Performance
C0277 09
C0277 07
C0277 4B
C0890 03
C0890 07
C0890 07
C0890 03
C0890 07
C0890 07
9B-54