Fail smog0due to code p0650 g mil - 1999 Chevrolet Lumina

code p 065 refers to malfunction indicator lamp(MIL)--circuit malfunction====causes --wiring --MIL---ECM
It also refers to crankshaft position /cam shaft position bank 1 sensor A--correlation===causes --wiring--Crank sensor--cam sensor--mechanical fault

P0650

Description
Malfunction Indicator Lamp (MIL) Control Circuit Output drive moduels (ODM's) are used by the powertrain control module (PCM) to turn on many of the current-driven devices that are needed to control various engine and transaxle functions. Each ODM is capable of controlling up to 7 separate outputs by applying ground to the device whish the PCM is commanding ON. Unlike quad diver modules (QDM's) used in prior model years, ODM's have the capability of diagnosing each output circuit individually. DTC P0650 set indicates an impropervoltage level on the output circuit that control the MIL.

P0650 - Malfunction Indicator Lamp Control Circuit Malfunction

Possible causes- Harness or connectors for the MIL circuit is open or shorted. Check connectors to instrument cluster.
- MIL bulb may be faulty, check this first.
- Faulty ECM. Very rare that this is the problem.

Read more: http://engine-codes.com/p0650.html#ixzz27mKYd94I

P0650: MIL Control Circuit Malfunction
P0036: HO2S Bank 1 Sen 2 Heater Circuit
P0442: EVAP Emission Control System Leak (Small)
P0140: O2 Sensor CKT No Activity (Bank 1 Sensor 2)

DTC P0650 represents an issue with the actual check engine light (malfunction indicator lamp). Ignition voltage is supplied directly to the malfunction indicator lamp (MIL). The powertrain control module (PCM) controls the lamp by grounding the control circuit via an internal switch called a driver. The primary function of the driver is to supply the ground for the component being controlled. The driver has a fault line which is monitored by the PCM. When the PCM is commanding a component ON, the voltage of the control circuit should be low, near 0 volts. When the PCM is commanding the component control circuit OFF, the voltage potential of the circuit should be high, near battery voltage. If the fault detection circuit senses a voltage other than what is expected, the fault line status will change causing the diagnostic trouble code (DTC) to set.

A DTC P0650 indicates a problem with the circuit to the actual check engine light itself. If the fault is current, check if the check engine (service engine soon) lamp comes on when you turn the ignition on, If not, we will need to pull the engine control computer and ground the wire that goes to the light. If the light comes on, it is a failed pcm which must be replaced and reprogrammed. If not, it is either the circuit to the cluster or the cluster itself.

Good luck.

Check your fuse box in the engine compartment, look at fuse #25 to see if it is good, if not replace it.

The error code P0650 is a malfunction indicator lamp circuit, malfunction conditions. The possible causes are the MIL control circuit is open, or shorted ground to the system. It is possible that the PCM has failed, and it can either be flashed, or replaced. Remember to use genuine Delco products for optimal service.

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.

po650 malfuction idicator light control curcuit
po700 transmission control system (mil request)
malfuction indicator light is the check engine light
mil request is the same thing
hope this is helpful

P0650 Malfunction Indicator Lamp (MIL) Control Circuit Malfunction

Malfunction Indicator Lamp (MIL) is located on the instrument panel. When the ignition switch is turned ON without engine running, MIL will light up. This is a bulb check. When the engine is started, MIL should go off. If MIL remains on, the on board diagnostic system has detected an engine system malfunction.

Possible Causes:

Harness or connectors (MIL circuit is open or shorted.)

MIL bulb may be faulty

P 0151 oxygen sensor 1, bank 2 - low voltage
Cause- Exhaust leak, wiring short to earth

P0650- Malfunction indicator light

P1166 & P1167 these codes do not exist, if you check these numbers I may be able to assist you further.