Suzuki XL7 2007 Service Manual page 249

3. Connect each component associated with the 5-volt
reference 3 circuit one at a time while monitoring the
5-Volt Reference 3 Circuit Status parameter with a
scan tool. The parameter should continue to display
OK.
➢ If the parameter displays Fault when a component
is connected, test the signal circuit of that
component for a short to voltage. If the circuit tests
normal, replace the component.
Repair Instructions
Perform the "Diagnostic Repair Verification - Vehicle
Diagnostic Information: " after completing the diagnostic
procedure.
• "Throttle Body Assembly Replacement: "
• "Crankshaft Position Sensor Replacement: "
• "Accelerator Pedal Position Sensor Replacement: "
• "Air Conditioning (A/C) Refrigerant Pressure Sensor
Replacement: "
• "Control Module References: " for engine control
module replacement, setup, and programming
DTC P0700
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: " provide an overview of each
diagnostic category.
DTC Descriptor
DTC P0700: Transmission Control Module (TCM)
Requested MIL Illumination
Circuit/System Description
This diagnostic trouble code (DTC) indicates that an
emission related transmission DTC set in the
transmission control module (TCM). The engine control
module (ECM) receives the TCM information over the
serial data circuit. The ECM turns ON the malfunction
indicator lamp (MIL) when the TCM sends a message
over the serial data circuit requesting MIL illumination.
The DTC information for the ECM will only display DTC
P0700, but the freeze frame/failure records data will
display the transmission DTC that set.
Conditions for Running the DTC
• The ignition is ON or the engine is operating.
• DTC P0700 runs continuously.
Engine General Information and Diagnosis:
Conditions for Setting the DTC
The ECM receives a serial data message, from the
TCM, in order to illuminate the MIL.
Action Taken When the DTC Sets
DTC P0700 is a Type A DTC.
Conditions for Clearing the DTC
DTC P0700 is a Type A DTC.
Circuit/System Verification
NOTE
Correct any Engine Controls DTCs before
diagnosing TCM DTCs.
DTC P0700 is an informational DTC. If there are no
Engine Controls DTCs, refer to "Diagnostic Trouble
Code (DTC) List - Vehicle Diagnostic Information: " for
diagnosis of TCM DTCs.
DTC P0864
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 P0864: TCM Communication Circuit Performance
Circuit/System Description
The transmission control module (TCM) sends vehicle
speed data to the engine control module (ECM). The
data is sent to the ECM through a high speed network
called the GM control area network (CAN). Two circuits
are used to communicate CAN data between the ECM
and TCM. A fault in the CAN will not cause DTC P0864
to set by itself. If a CAN fault occurs, other DTCs set
before DTC P0864.
Conditions for Running the DTC
• The ignition is ON for more than 3 seconds.
• The ignition voltage is between 10-18 volts.
• No other CAN errors are present.
• DTC P0864 runs continuously once the above
conditions are met.
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