Question about 2003 Chevrolet Avalanche

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Code po650, po332,p1875 comes on what do they mean exactly,whats wrong

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CODE PO650 MALFUNCTION INDICATOR LAMP CIRCUIT MALFUNCTION CONDITIONS. POSSIBLE CAUSES MIL CONTROL CIRCUIT IS OPEN , SHORTED TO GROUND TO SYSTEM POWER,MIL CONTROL POWER CIRCUIT OPEN IN THE INSTRUMENT CLUSTER, MIL THE LAMP IS DAMAGED OR HAS FAILED,INSTRUMENT CLUSTER OR THE PCM HAS FAILED. CODE PO332 KNOCK SENSOR CIRCUIT LOW INPUT BANK 2 CONDITIONS, POSSIBLE CAUSE KNOCK SENSOR FAILED, CODE P1875 4WD LOW SWITCH CIRCUIT MALFUNCTION CONDITIONS FOR TRANSMISSIONS 4L60E 4L80E, POSSIBLE CAUSES 4WD SWITCH LOW SIGNAL CIRCUIT IS OPEN OR SHORTED TO GROUND, 4WD LOW SWITCH IS DAMAGED OR IT HAS FAILED,PCM HAS FAILED.

Posted on Mar 14, 2011

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P0650: Malfunction Indicator Light (MIL) Control Circuit
P0332: Knock sensor 2 low input

P1875 is given the description "4WD Low Switch Circuit Electrical." A fault has been sensed in the electrical switch circuit for the low setting of the four-wheel drive when this code appears

Read more: Chevy Code P1875 ' eHow.com http://www.ehow.com/facts_7937128_chevy-code-p1875.html#ixzz1GXuObZc2

Posted on Mar 14, 2011

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DTC P0650

Circuit Description
The malfunction indicator lamp (MIL) is located on the instrument panel cluster (IPC). The MIL informs the driver that an emission system fault has occurred and that the engine control system requires service. The control module monitors the MIL control circuit for conditions that are incorrect for the commanded state of the MIL. For example, a failure condition exists if the control module detects low voltage when the MIL is commanded OFF, or high voltage when the MIL is commanded ON. If the control module detects an improper voltage on the MIL control circuit, DTC P0650 will set.


code po332 knock sensor #2 low input these engines have a problem that should be covered under warranty with the knock sensors which are located in the valley top plate below your intake manifold,... they catch water in there and corrode both sensor, wire plug. and thus the ECU gets poor continuity and sets DTC in MIL. conditions may cause poor gas mileage and long crank period before starting because it pulls back ignition timing for safety.



DTC P1875 sets if one of the following conditions occurs:
Does it go into 4 low? When was the last time it was in 4 low?



Condition 1
The 4WD low switch is in 4WD low.
The transfer case is not in 4WD low.
The TCC slip speed is -3,000 to -50 RPM.
The transfer case ratio is 0.08-1.2, the transfer case ratio is the engine speed divided by the transfer case output speed.
All conditions are met for 5 seconds.


Condition 2
The 4WD low switch is not in 4WD low.
The transfer case is in 4WD low.
The TCC is commanded ON.
The TCC slip speed is 100 to 3,000 RPM.
The transfer case ratio is 2.5-2.9.
All conditions are met for 10 seconds.


check these things out and hope i helped.

Posted on Mar 14, 2011

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the PO300 code is for a random misfire in the engine, PO332 is for the knock sensor and PO756 is for the transmission not shifting or low vacuum.
I think if you fix the random misfire the rest will correct itself or in other words you need to replace the spark plugs and check the disturber cap for damage or carbon cracks and replace the rotor and you might be in business.

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Code is MIL Control Circuit Malfunction.

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1996 chevy s10 code read a P1875. what is it and how to fix it?


In Chevrolet vehicles, code P1875 is given the description "4WD Low Switch Circuit Electrical." A fault has been sensed in the electrical switch circuit for the low setting of the four-wheel drive when this code appears. The problem sensed is within an electrical circuit that connects the Vehicle Control Module to the Transfer Case Control Module. good-day !

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I have a Nissan Altima 2003 with over 150,000mls and a 2.5lt engine. The code reader showed a Po650 code. Can you tell me what this code refers to. Any help would be greatly appreciated. Thank you.


If you are not experiencing any actual driveability problems such as with your brakes, P0650 then the problem may be electrical.

Start your search with the fuse for your traction control system, it is under the hood in the compartment mounted to the passenger side strut tower. If nothing is wrong with that then check your wiring harnesses from that box for loose connection or wire damage, and also under the dash.

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Water Pump replacement and then PO332 code ~ knock sensor


Sounds like you have several problems. The P0332 sounds like you got your knock sensor wet and needs to be replaced. When you do make sure you replace the wire harness also and that you seal around both sensors. Also remove the back near fire wall foam under the intake mani to let the water that collects evap out.

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