Eclipse L4-2.4L (4G69) (2008)
Part 2
FUNCTION
The diagnostic result demonstrates that "the scan tool cannot receive the sent data from the SRS-ECU" when the scan tool MB991958 checks the
periodically sent data from each ECU and cannot receive the SRS-ECU data only.
TROUBLE JUDGEMENT CONDITIONS
Scan tool MB991958 judges the trouble when the periodically sent data from SRS-ECU cannot be received and sent.
TROUBLESHOOTING HINTS
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The wiring harness may be defective [open circuit between SRS-ECU and joint connector (3)]
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The connector may be defective [poor connection of joint connector (3) or SRS-ECU connector]
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Power supply circuit malfunction of the SRS-ECU
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The SRS-ECU may be defective.
DIAGNOSIS
Required Special Tools:
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MB991223: Harness Set
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MB992006: Extra fine probe
STEP 1. Check joint connector (3) C-03 and SRS-ECU connector C-123 for loose, corroded or damaged terminals, or terminals pushed back in
the connector.