Tracker 4WD V6-2.5L VIN 4 (2001)
Information Bus: Symptom Related Diagnostic Procedures
A Symptoms - Data Link Communications
IMPORTANT: Review the Scan Tool operation in order to familiarize yourself with the system functions. Refer to the scan tool user manual.
Visual/physical Inspection
Inspect the DLC connector for obvious damage or conditions which could cause the symptom.
Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent and Poor Connections in
Diagrams.
Symptoms List
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom.
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Scan Tool Does Not Power Up.
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Scan Tool Does Not Communicate with Components
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Scan Tool Does Not Communicate with EBCM.
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Scan Tool Does Not Communicate with VCM/PCM (1.6 L) or Scan Tool Does Not Communicate with VCM/PCM (2.0 L) or Scan Tool Does Not
Communicate with VCM/PCM (2.5 L).
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Scan Tool Does Not Communicate with SDM.
Scan Tool Does Not Communicate With EBCM
CIRCUIT DESCRIPTION
The service technician must begin diagnosis of any ABS complaint with the ABS Diagnostic System Check.
The diagnostic system check directs the service technician to the next logical step in diagnosing the complaint.
DIAGNOSTIC AIDS
Communication with the EBCM is not possible when excessive resistance exists in the following components:
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Grounds
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The power supply circuits
If communication with the EBCM is not possible, perform the following actions:
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Verify that the EBCM ground connection is good.
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Verity that no excessive resistance exists in any of the power supply circuits.
The following list contains items that need to be inspected when diagnosing this system:
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Open DEF Fuse
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Open ABS Fuse
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Clean, tight G200
Excessive resistance in the following circuits will not allow communication with the EBCM:
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Battery feed
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Switched ignition
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Ground
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Serial data line
If communication with the EBCM is not possible with a scan tool, ensure these circuits are in good condition and that there is no excessive resistance.
Also check the EBCM connectors for poor connector terminal contact.
If an intermittent malfunction exists, refer to Testing for Intermittent and Poor Connections in Diagrams.
TEST DESCRIPTION