Montero XLS 4WD V6-3.5L SOHC (2001)
Hydraulic Brake Booster: Reading and Clearing Diagnostic Trouble Codes
With Scan Tool
TROUBLE CODE DIAGNOSIS
Retrieving HBB Diagnostic Trouble Codes
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Using Scan Tool MB991502
Required Special Tool:
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MB991502: Scan Tool (MUT-II)
CAUTION: To prevent damage to scan tool MB991502, always turn the ignition switch to "LOCK" (OFF) position before connecting or
disconnecting scan tool MB991502.
1. Connect scan tool MB991502 to the data link connector.
2. Turn the ignition switch to "ON" position.
3. Use scan tool MB991502 to check for HBB diagnostic trouble codes.
4. Turn the ignition switch to "LOCK" (OFF) position.
5. Disconnect scan tool MB991502.
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Using the Brake Warning Light and Special Tool MB991529
Without Scan Tool
TROUBLE CODE DIAGNOSIS
Retrieving HBB Diagnostic Trouble Codes
Required Special Tool:
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MB991529: Diagnostic Trouble Code Check Harness
1. Use special tool MB991529 to ground number 1 terminal of the data link connector.
2. Start the engine.
3. Read out a diagnostic trouble code by observing how the warning light flashes.