Question about 1999 Nissan Maxima
How can i fix it
Posted by Anonymous on
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Posted on Jan 02, 2017
It appears we have an Air lock scenario and you will need to perform a system Bleed.
Park the vehicle on level ground, when cold remove coolant filler cap, start engine and leave to idle, turn heater on full and blower to max. When engine reaches operating temperature watch and listen near coolant filler, keep clear as gurgling and hopefully a boil over should occur. Top up with very warm coolant and wait as it may do it again.
Check for heat inside vehicle if warm replace coolant cap but keep an eye on temperature gauge as the ~Air lock may have moved on from heater matrix/core so proceedure needs to be carried out again from COLD.
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Paul 'W' U.K
Posted on Feb 24, 2009
a code 12 means no G or Ne signal to the ecu im put side for at least 2 seconds that code is ground (G) so it is an open or short to ground on the ECU threw the STA circuit
Posted on Jun 28, 2009
this code is telling you something is wrong with your EGR temp sensor circuit, this is due to an extreme low or high voltage detection from the sensor by your cars ECM computer. check the harness connections or check/ place your EGR temperature sensor, this should solve your issue, thanks
Posted on Oct 03, 2009
Tips for a great answer:
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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