P1985 Holden Tx OBD Code

OBD/2 P1985 error code description and symptoms.

Mass Air Flow (MAF) Sensor Intermittent The MAF sensor circuit is monitored by the PCM for sudden voltage (or air flow) input change through the comprehensive component monitor (CCM). If during the last 40 warm-up cycles in key ON engine running the PCM detects a voltage (or air flow) change beyond the minimum or maximum calibrated limit, a continuous memory diagnostic trouble code (DTC) is stored.

To check for an open circuit, trace along the length of the transmission control circuit, checking for breaks in the wiring. Repair any broken wiring and make sure all connectors are fully seated and locked.Pay close attention to connectors, looking for corrosion, bent or broken pins, or moisture in the connector. Repair any connector issues even if they are not specifically part of the transmission control circuit as they may serve a function in providing power to the transmission control circuit.

P1985 Holden Tx Error Code Repair Process :

For exhaust gas recirculation sensor a circuit low check engine light is perhaps the most troubling of lights because it could mean so many different things, from you didn't screw the gas cap on tightly enough to look out for pistons flying through the hood and into the stratosphere. The easiest way to find out what this light is telling you is to hook your vehicle up to a scan tool. P1985 error code diagnostic tool looks a little like an oversized calculator and plugs into a communication port inside the car. After you instruct it to perform the scan, it speaks exhaust gas recirculation sensor a circuit low with your car's computers to find out exactly what's prompting the light to turn on.

Common Causes of Holden Tx P1985 OBD2 Code

A common cause of code P1985 is the failure of Exhaust Gas Recirculation Sensor A Circuit Low, but there are several other possible causes as well, such as ;

Damaged camshaft position (CMP) sensor
Faulty front heated oxygen sensor
Air fuel ratio (A/F) Sensor 1 Bank 1 circuit poor electrical connection
Oil flow restriction in the oil passages or the variable camshaft timing (VCT) valve body

P1985 is a kind of Powertrain Trouble Code

Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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P1985 Holden Tx OBD Code

P1985 Holden Tx Error Code Repair Process :

Common Causes of Holden Tx P1985 OBD2 Code

P1985 code for other Holden cars