Montero Sport LTD 4WD V6-3.5L SOHC (1999)
If the harness wires between the ignition switch and ETACS-ECU connector D-11 or tone alarm-ECU connector D-12 are damaged, repair them. Check
that the malfunction is eliminated.
If the harness wires are in good condition, replace the ETACS-ECU or tone alarm-ECU. Check that the malfunction is eliminated.
NOTE: After inspecting junction block connector D-08, inspect the wire. If junction block connector D-08 is damaged) repair or replace it.
Inspection Procedure 4
The Ignition Key Reminder Tone Alarm Does Not Stop Sounding by Removing the Ignition Key. (The Tone Alarm Stops Sounding by Closing
the Driver's Door.)
Ignition Key Reminder Tone Alarm Circuit
CIRCUIT OPERATION
TECHNICAL DESCRIPTION (COMMENT)
It is possible that there is a malfunction of the input signal from the key reminder switch or the ETACS-ECU or tone alarm-ECU.
TROUBLESHOOTING HINTS
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Malfunction of the key reminder switch
-
Malfunction of the connector
-
Damaged harness wire
-
Malfunction of the ETACS-ECU or tone alarm-ECU
DIAGNOSIS
Required Special Tool <Vehicles with ETACS-ECU>:
MB991502: Scan Tool (MUT-II)
STEP 1. Check the input signal from the ignition switch.
<Vehicles with ETACS-ECU>
CAUTION: To prevent damage to scan tool MB991502, turn the ignition switch "OFF" before connecting or disconnecting it.
1. Connect scan tool MB991502, to the data link connector.
2. Check that the tone alarm of the scan tool MB991502 sounds when the ignition key is moved from the "LOCK" position to the "ON" position.
If the tone alarm of the scan tool MB991502 does not sound, the input signal from the driver's side door switch may be abnormal Go to Step 2
If tone alarm of the scan tool MB991502 sounds when the driver's side door is opened [front door switch (LH) is turned to ON, the input signal
from driver's side door switch to the scan tool MB991502 is normal. Replace the ETACS-ECU. Check that the malfunction is eliminated.
<Vehicles with tone alarm-ECU>
Go to Step 2.
STEP 2. Check the continuity of the key reminder switch.
1. Remove the driver's side under cover.
2. Remove the column covers, lower and upper.
3. Disconnect wiring connector D-16 from the key reminder switch and measure at the key reminder switch side.
