Eclipse L4-2.4L SOHC (2004)
STEP 1. Check trouble symptom.
Q: Can the encrypted code register mode be set?
YES: Go to Step 3.
NO: Go to Step 2.
STEP 2. Check the input signal (by using the Pulse check mode of the monitor).
Check the input signals from the following switches:
-
Key reminder switch
-
Hazard warning light switch
CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or
disconnecting scan tool MB991958.
1. Connect scan tool MB991958. Refer to "How to connect SWS monitor." See: Reading and Clearing Diagnostic Trouble Codes/How to Connect
SWS Monitor
2. Operate scan tool MB991958 according to the procedure below to display "Pulse check."
a. Select "Interactive Diagnosis."
b. Select "System select."
c. Select "SWS."
d. Select "Pulse Checking."
3. Check the scan tool MB991958 sounds or not.
4. If the switches (see the given table), which are applicable for the input signal check, are operated.
Q: When the key reminder switch and the hazard warning light switch are operated, does scan tool MB991958 sound in each case?
Buzzer of scan tool MB991958 sounds normally: Replace the ETACS-ECU. Check that the encrypted code can be registered in the transmitter.
Scan tool MB991958 does not sound when the ignition key is removed and reinserted: Refer to Inspection Procedure P-1 "ETACS-ECU does
not receive a signal from the key reminder switch."
