Stratus Coupe V6-3.0L VIN H (2001)
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CIRCUIT OPERATION
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The front-ECU is energized by the battery and the ignition switch (IG2). If one of the harness wires has an open circuit, power will be supplied by
the other active harness wire.
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The front-ECU communicates with other ECUs and performs control functions through the SWS communication line.
DTC SET CONDITION
This DTC is displayed when the front-ECU sends an abnormal signal to the ETACS-ECU.
TROUBLESHOOTING HINTS
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Malfunction of the front- ECU
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Malfunction of the ETACS-ECU
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Damaged harness wires or connectors
DIAGNOSIS
Required Special Tools:
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MB991223: Harness Set
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MB991502: Scan Tool (MUT-II)
STEP 1.Check the ignition switch position.
Q: Does DTC 13 set with the ignition switch at "ON" position?
YES: Go to Step 5.
NO: Go to Step 2.
STEP 2. Check the front-ECU power supply circuit (battery circuit) at the front-ECU connector A-09X.
1. Disconnect the front-ECU connector A-09X and measure at the relay box side.
2. Measure the voltage between terminal 16 and ground.
Q: Is the voltage approximately 12 volts (battery positive voltage)?
YES: Replace the front-ECU. Confirm the DTC 13 is not displayed.
NO: Go to Step 3.
STEP 3. Check the front-ECU connector A-09X for damage.