Eclipse L4-2.4L (4G69) (2008)
Part 2
FUNCTION
The diagnostic result demonstrates that "the scan tool cannot receive the sent data from the ECM [M/T] or PCM [A/T], ABS-ECU [vehicles without
TCL or ASC] or ABS/TCL-ECU [vehicles with TCL] and convertible top control module" when the scan tool MB991958 checks the periodically sent
data from each ECU and cannot receive convertible top control module, ABS-ECU [vehicles without TCL or ASC] or ABS/TCL-ECU [vehicles with
TCL] or TCL/ASC-ECU [vehicles with ASC] and ECM [M/T] or powertrain control system [A/T] data only.
TROUBLE JUDGEMENT CONDITIONS
Scan tool MB991958 judges the trouble when the periodically sent data from convertible top control module, ABS-ECU [vehicles without TCL or ASC]
or ABS/TCL-ECU [vehicles with TCL] or TCL/ASC-ECU [vehicles with ASC] and ECM [M/T] or PCM [A/T] cannot be received and sent.
TROUBLESHOOTING HINTS
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The wiring harness may be defective [open circuit between ABS-ECU [vehicles without TCL or ASC] or ABS/TCL-ECU [vehicles with TCL] or
TCL/ASC-ECU [vehicles with ASC] and joint connector (3)]
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The connector may be defective [poor connection of joint connector (3) or convertible top control module connector or ABS-ECU connector
[vehicles without TCL or ASC] or ABS/TCL-ECU connector [vehicles with TCL] or TCL/ASC-ECU connector [vehicles with ASC]]
-
The ABS-ECU [vehicles without TCL or ASC] or ABS/TCL-ECU [vehicles with TCL] or TCL/ASC-ECU connector [vehicles with ASC] may be
defective (internal open circuit)
-
The convertible top control module may be defective (internal open circuit)
-
The ECM [M/T] or PCM [A/T] may be defective (internal open circuit)
DIAGNOSIS
Required Special Tools:
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MB991223: Harness Set
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MB992006: Extra fine probe
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MB991970: ABS Check Harness
STEP 1. Check joint connector (3) C-03, convertible top control module connector D-45 and ABS-ECU connector A-02 [vehicles without TCL
or ASC] or ABS/TCL-ECU connector A-03 [vehicles with TCL] or TCL/ASC-ECU connector A-38 [vehicles with ASC] for loose, corroded or
damaged terminals, or terminals pushed back in the connector.