Suzuki XL7 2007 Service Manual page 920

1J-27 Charging System:
DTC C0899
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 Descriptor
DTC C0899: Device Voltage Low
Circuit/System Description
The electronic brake control module (EBCM) monitors
the voltage level available for system operation. A low
voltage condition prevents the system from operating
properly.
Conditions for Running the DTC
Ignition is ON.
Conditions for Setting the DTC
This fault will be set if the ignition voltage to EBCM is
less than 9 volts for 100 msec.
Action Taken When the DTC Sets
• Traction Control System (TCS) and Vehicle Stability
Enhancement System (VSES) for the duration of the
ignition cycle.
• The TCS indicator turns ON.
• The DIC displays the Service Stability System
message.
Conditions for Clearing the DTC
• The condition for the DTC is no longer present.
• The EBCM automatically clears the history DTC when
a current DTC is not detected in 100 consecutive drive
cycles.
Reference Information
Schematic Reference
"Antilock Brake System Schematics: "
Connector End View Reference
"Antilock Brake System Connector End Views: "
Description and Operation
"ABS Description and Operation: "
Electrical Information Reference
• "Circuit Testing: "
• "Connector Repairs: "
• "Testing for Intermittent Conditions and Poor
Connections: "
• "Wiring Repairs: "
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at
the EBCM.
2. Ignition OFF, test for less than 1.0 ohm of resistance
between the ground circuit and ground.
➢ If the greater than the specified range, test the
ground circuit for an open/high resistance. If the
circuit tests normal replace the EBCM.
3. Measure the voltage at the battery terminals.
4. Ignition ON, observe the scan tool EBCM ignition
voltage parameter. Verify that battery terminal
voltage and ignition voltage readings do not differ
more than 1-volt.
➢ If greater than the specified value, test the ignition
voltage circuit for a short to ground or an open/high
resistance. If the circuit tests normal replace the
EBCM.
5. Go to "Charging System Test"
Repair Instructions
Perform the "Diagnostic Repair Verification - Vehicle
Diagnostic Information: " after completing the diagnostic
procedure.
"Control Module References: " for EBCM replacement,
setup and programming.
DTC C0900
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 Descriptor
DTC C0900: Device Voltage High
Circuit/System Description
The electronic brake control module (EBCM) monitors
the ignition voltage. If the voltage level is too high,
damage may result in the system. When a high voltage
condition is detected the EBCM turns OFF the system
relay which removes battery voltage from the solenoid
valves and pump motor.
Conditions for Running the DTC
Engine running.
Conditions for Setting the DTC
The system voltage is greater than 16 volts for 100
msec.