Question about 1999 Nissan Maxima
A/t and engine diag port are the same. It is the OBD II cable port. and is located under the dash on the drivers side. black or silver plug.
Posted on May 15, 2009
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Posted on Jan 02, 2017
Tips for a great answer:
The ability of the control module or modules to communicate through the serial data circuit.
The identification of any stored diagnostic trouble codes (DTCs) and the status of the codes.
The use of the Diagnostic System Check - Vehicle will identify the correct procedure for diagnosing the system and where the procedure is located.
Install a scan tool.
Does the scan tool power up?
Go to Step 3
Go to Scan Tool Does Not Power Up
If you don't have a scan tool that will communicate with all modules on the vehicle or understand this , your best bet is to take it to a ASE certified repair shop or the dealer .
Jan 07, 2016 | 2006 GMC Canyon Crew
Sep 10, 2012 | Oldsmobile Cars & Trucks
A/T Diagnosis Communication Line Malfunction Possible Causes:
Trouble Code: P0100
Mass Airflow Sensor Circuit Malfunction
Air Intake leaks located after the MAF sensor assembly MAF sensor signal circuit is open, shorted to ground or power MAF sensor has failed PCM has failed
Trouble Code: P1605
TCM communication line circuit is open or shorted to ground TCM communication line circuit shorted to VREF or power (B+) TCM or PCM has failed TSB 01-004 (01/01) contains information related to this code
For the P0100, check the connector on top of the MAF sesnor for looseness or corrosion. Connector is on top in piocture below.
A/T Diagnosis Communication Line Malfunction
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