Information Bus: Adjustments
ADJUSTMENT PROCEDURES OF SWS FUNCTIONRequired Special Tools:
- MB991223: Test Harness Set
- MB991502: Scan Toll (MUT-II)
- MB991529: Diagnostic Trouble Code Check Harness
The following functions can be enabled or disabled by operating input switches in a special manner. This set mode is stored after the battery is disconnected.
- Keyless entry hazard answerback function
- Headlight automatic shutdown function
- Initialization of above mentioned functions
NOTE: The keyless entry hazard answerback can be also adjusted by operating the RKE transmitter (however; this adjustment can be done more easily by operating the transmitter) Refer to Keyless Entry System - On-vehicle Service - Enabling/disabling the Answerback Function.
Entry conditions for adjustment mode
1. Set switches to the following conditions:
- Hazard warning light switch: OFF
- Diagnosis control: ON (Connect scan tool MB991502 to the data link connector, or connect the data link connector terminal 1 to ground.)
- Key reminder switch: OFF (insert the ignition key)
- Ignition switch: "LOCK" (OFF)
- Driver's door switch: OFF (driver's door closed)
2. If the windshield washer switch remains on for 10 seconds or more, the tone alarm incorporated in the ETACS-ECU sounds once, and then enter the adjustment mode.
Release conditions for the adjustment mode
The adjustment mode will be released under one of the following conditions:
- Diagnosis control: ON (Disconnect scan tool MB991502 from the data link connector, or disconnect the data link connector terminal 1 from ground.)
- Key reminder switch: ON (ignition key removed)
- Ignition switch: Turn to the positions other than "LOCK" (OFF).
- Driver's door switch: ON (driver's door opened)
- After three minutes while the adjustment is not made (If any adjustment has been made within the three-minute period, cancel or complete the operation, and then release the adjustment mode within three minutes).
- When any other warning tone alarms sound