Eclipse V6-3.8L (6G75) (2006)
/Page-1490001.png)
Body Control Systems: Initial Inspection and Diagnostic Overview
Description of on-Board Diagnostics
DIAGNOSTIC FUNCTION ON-BOARD DIAGNOSTICS
U1700 - B1761
If an error occurs in the ECU or the SWS or CAN communication line which performs the SWS or CAN communication, the DTC is memorized in
ETACS-ECU. The DTCs have 16 items. The DTCs are checked to connect scan tool MB991958 (MUT-III sub assembly). The memorized DTCs are not
erased even if the ignition switch is turned to the "LOCK" (OFF) position. The DTCs are erased to operate scan tool MB991958 (MUT-III sub
assembly).
NOTE: *1: For vehicles that do not have a sunroof, the diagnosis code is always sent but it does not indicate a problem.
NOTE: *2: The diagnostic trouble code is always set, but it does not indicate a problem.
NOTE: *3: The diagnosis code for a past problem is not sent.
Before Carrying Out Troubleshooting
GENERAL DESCRIPTION
BEFORE CARRYING OUT TROUBLESHOOTING
Before carrying out troubleshooting, check the following two items.
-
Make sure that the ETACS-ECU, the junction block (J/B), the front-ECU and the engine compartment relay box are connected securely.
-
Make sure that fuses and fusible links related to relevant systems are not blown.
SWS Diagnostic Troubleshooting Strategy
SWS DIAGNOSTIC TROUBLESHOOTING STRATEGY
1. Gather information about the problem from the customer.
2. Verify that the condition described by the customer exists.
NOTE: If an error occurs in the SWS communication line, the ECU isolated from the communication line performs a fail-safe or backup
operation, so the problem may not match the one shown in the Trouble Symptom Chart. However, the cause of the failure can be tracked down by
performing the following troubleshooting with the SWS monitor.
3. Version number and destination check
Check whether the SWS version number (1) and destination (North America) meet the vehicle specifications. If they are different, replace the
ETACS-ECU with a correct one.