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PCM POWERTRAIN CONTROL MODULE INOPERATIVE AIRB

PCM POWERTRAIN CONTROL MODULE INOPERATIVE AIRB /AIRD VALVE INOPERATIVE AIR PUMP DAMAGED AIRB / AIRD SOLENOID OPEN AND SHORT AIRB / AIRD SOLENOID CIRCUIT DAMAGED PCM STATUS FF (ABOVE MAX THRESHOLD) P0491 CMDTCSs SECONDARY AIR INJECTION SYSTEM (BANK1)

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VACUUM LEAK

Posted on Oct 22, 2013

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Posted on Jan 02, 2017

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SOURCE: 2002 pontiac montana van ''service engine soon'' light

Diagnostic Aids

  • Low system airflow can cause an intermittent complaint. Inspect for the following conditions:
    • Any restriction in the exhaust system that may produce back pressure
    • Pinched, kinked, restricted, or leaking pipes, hoses, or fittings
    • A restricted pump inlet hose, duct, or filter
    • Pinched, kinked, restricted, or leaking vacuum lines
    • Heat damage
  • A short to voltage in the pump relay control circuit can result in the AIR pump running continuously with the ignition OFF by back-feeding to ground. This will eventually result in pump failure.
  • An AIR pump that had become inoperative and had shown indications of having exhaust gases in the outlet port would indicate check valve failure.
  • Notice Do not operate the AIR pump for more than 60 seconds. Continuous operation of the AIR pump in excess of 60 seconds will damage the AIR pump.

    If the DTC cannot be duplicated and is determined to be intermittent, reviewing the Failure Records data can be useful in determining when the DTC was last set. Also refer to Intermittent Conditions

Posted on Oct 11, 2009

  • 64 Answers

SOURCE: 97 Jetta Secondary Air Injection System Incorrect Flow

the air pump is located on the engine towards the front of the vehicle and has apx. 3/4 diameter pipes running to and from it. it is apx. 2 fists in size and it is black plastic. one of the lines on top of the air pump runs to the other side of the engine towards the firewall. at the other end of that pipe is the valve. disconnect that pipe while the vehicle is running. no air out of the pipe means bad pump. air coming out of the pipe means bad valve

Posted on Feb 13, 2011

SOURCE: 2000 sl1 saturn ODB Codes

dude buy a new egr or buy a can of tbcleaner remove the 2 screws on egr and ele connnector for exact percedure look up cleans throttle body rich pinn you tube GL

Posted on Dec 08, 2012

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Where is the automatic transmission modular located on 2001 buic centry


Do you mean the transmission control module ? It is incorporated into the engine control module . PCM - powertrain control module .

Powertrain Control Module (PCM) (L36/L67)
Left front of the engine compartment, inside the air cleaner assembly
Engine Controls Component Views in Engine Controls - 3.8L
Powertrain Control Module Connector End Views in Engine Controls - 3.8L
Powertrain Control Module (PCM) (LG8)
Left front of the engine compartment, inside the air cleaner assembly

Oct 04, 2015 | Cars & Trucks

1 Answer

I have a service engine soon light on and have hooked up an OBD11 reader to it and got code P0410 pertaining to a secondary air injection problem. hoses are fine, pump is new.


P0410 Oldsmobile - Secondary Air Injection System Malfunction

Possible causes: - Faulty Vacuum hoses damaged
- Faulty Air Pump inoperative
- Air bypass solenoid harness is open or shorted
- Air bypass solenoid circuit poor electrical connection
- Air bypass solenoid leaking/blocked or stuck open/closed
- Air diverter valve leaking/blocked or stuck open/closed

Tech notes: Visually inspect AIR pump and AIR bypass valve harness and connector, if connector are OK, then replaced AIR bypass valve.

When is the code detected? The secondary air injection system does not detect the presence of air in the exhaust when introduced by the secondary air injection system.

Possible symptoms: - Engine Light ON (or Service Engine Soon Warning Light)
- Engine hesitation

P0410 Oldsmobile Description An air pump is used on the vehicle to lower tail pipe emissions on start-up. The Powertrain Control Module (PCM) grounds the Air pump relay control circuit which energizes the Air pump. The PCM also grounds the Air combination valve vacuum control solenoid circuit, which energizes the Air vacuum control solenoid. Vacuum is then applied to both Air combination valve diaphragms which opens the shut off valves. The PCM enables both circuits simultaneously when Air system operations id desired. When the AIR system is active, then Air pump forces fresh air into the exhaust stream in order to accelerate catalyst operation. The AIR combination valves replace the conventional check valves. When the AIR system is inactive the shut off valves prevent air flow in either direction.
P0410 Oldsmobile Secondary Air Injection System Malfunction

May 30, 2015 | 2001 Oldsmobile Intrigue

1 Answer

2006 jetta 2.5 liter


causes could be - Faulty Vacuum hoses damaged
- Faulty Air Pump inoperative
- Air bypass solenoid harness is open or shorted
- Air bypass solenoid circuit poor electrical connection
- Air bypass solenoid leaking/blocked or stuck open/closed
- Air diverter valve leaking/blocked or stuck open/closed

An air pump is used on the vehicle to lower tail pipe emissions on start-up. The Powertrain Control Module (PCM) grounds the Air pump relay control circuit which energizes the Air pump. The PCM also grounds the Air combination valve vacuum control solenoid circuit, which energizes the Air vacuum control solenoid. Vacuum is then applied to both Air combination valve diaphragms which opens the shut off valves. The PCM enables both circuits simultaneously when Air system operations id desired. When the AIR system is active, then Air pump forces fresh air into the exhaust stream in order to accelerate catalyst operation. The AIR combination valves replace the conventional check valves. When the AIR system is inactive the shut off valves prevent air flow in either direction.

Apr 08, 2014 | 2006 Volkswagen Jetta

1 Answer

P0410, p2101 and p0014 codes


Possible causes
- Faulty Vacuum hoses damaged
- Faulty Air Pump inoperative
- Air bypass solenoid harness is open or shorted
- Air bypass solenoid circuit poor electrical connection
- Air bypass solenoid leaking/blocked or stuck open/closed
- Air diverter valve leaking/blocked or stuck open/closed
help.jpg What does this mean? When is the code detected?
The secondary air injection system does not detect the presence of air in the exhaust when introduced by the secondary air injection system.
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Engine hesitation
P0410 Description
An air pump is used on the vehicle to lower tail pipe emissions on start-up. The Powertrain Control Module (PCM) grounds the Air pump relay control circuit which energizes the Air pump. The PCM also grounds the Air combination valve vacuum control solenoid circuit, which energizes the Air vacuum control solenoid. Vacuum is then applied to both Air combination valve diaphragms which opens the shut off valves. The PCM enables both circuits simultaneously when Air system operations id desired. When the AIR system is active, then Air pump forces fresh air into the exhaust stream in order to accelerate catalyst operation. The AIR combination valves replace the conventional check valves. When the AIR system is inactive the shut off valves prevent air flow in either direction.

Read more: http://engine-codes.com/p0410.html#ixzz31FMsMMLJ

Mar 27, 2014 | 2004 Chevrolet TrailBlazer

1 Answer

I replaced my secondary air check valve on my 2001 chevy tahoe but code 1416 still comes up. what else can i check


here is what i found on p1416.



P1416 Chevrolet
P1416 Chevrolet - Secondary Air Injection System Bank 2
Possible causes
- Faulty Secondary Air Injection (AIR) pump
- Secondary Air Injection check valve bank 2
- Secondary Air Injection (AIR) pump electrical circuit fault
- Blocked Secondary Air Injection (AIR) system

When is the code detected?

The P1416 code is set when no O2 sensor voltage change is detected by the Engine Control Module (ECM).


Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)


P1416 Chevrolet Description
An Secondary Air Injection (AIR) pump is used on this vehicle to lower tail pipe emissions on start-up. The PCM supplies a ground to the AIR pump relay, which energizes the AIR pump. The Powertrain Control Module (PCM) monitors the HO2S voltages to diagnose the AIR system. During the AIR test the PCM activates the AIR pump during closed loop operation. When the AIR is activated, the PCM monitors the HO2S voltages and short term fuel trim values for both banks of the engine. If the AIR system is operating properly, the HO2S voltages should go low and the short term fuel trim should go high.

Jan 23, 2014 | 2001 Chevrolet Tahoe

1 Answer

I just got my car scanned and a few codes pop up


Error Code: P0130
Fault:
Oxygen Sensor (O2S) 1, Bank 1 - Circuit Malfunction
Possible Cause:
Malfunction Indicator Lamp (MIL) Triggered on first occurrence.
-Wiring harness.
-Oxygen sensor (O2S).
-Engine control module (ECM).

Error Code: P0505
Fault:
Idle Speed Control (ISC) System - Malfunction
Possible Cause:
-Wiring harness.
-Idle speed control (ISC) actuator/Idle air control valve (IAC) valve.
-Throttle motor.
-Throttle valve tight/sticking.
-Engine control module (ECM).

Error Code: P0100
Fault Location:
-Mass Air Flow (MAF) Sensor/Volume Air Flow (VAF) Sensor - Circuit --Malfunction
Possible Cause:
-Wiring harness.
-Mass air flow (MAF) sensor.
-Volume air flow (VAF) sensor.
-Engine control module (ECM).

Error Code: P1491
Fault:
Exhaust Gas Recirculation (EGR) Valve Insufficient Lift
Possible Cause:
-Wiring harness.
-EGR Valve.
-ECM

Error Code:P1607
Fault:
-Engine Control Module (ECM)/Powertrain Control Module (PCM)

Error Code: P0966
Location:
-Pressure Control (PC) Solenoid B - Circuit Low
Possible Cause:
-Wiring short to earth.
-Pressure control (PC) solenoid.
-Engine control module (ECM)/Powertrain control module -(PCM)/Transmission control module (TCM) .


Apr 30, 2013 | 2004 Honda Civic

1 Answer

What does a p0410 code mean


Here is the definition of the code.

P0410 GMC Description An air pump is used on the vehicle to lower tail pipe emissions on start-up. The Powertrain Control Module (PCM) grounds the Air pump relay control circuit which energizes the Air pump. The PCM also grounds the Air combination valve vacuum control solenoid circuit, which energizes the Air vacuum control solenoid. Vacuum is then applied to both Air combination valve diaphragms which opens the shut off valves. The PCM enables both circuits simultaneously when Air system operations id desired. When the AIR system is active, then Air pump forces fresh air into the exhaust stream in order to accelerate catalyst operation. The AIR combination valves replace the conventional check valves. When the AIR system is inactive the shut off valves prevent air flow in either direction.
Possible causes - Faulty Vacuum hoses damaged
- Faulty Air Pump inoperative
- Air bypass solenoid harness is open or shorted
- Air bypass solenoid circuit poor electrical connection
- Air bypass solenoid leaking/blocked or stuck open/closed
- Air diverter valve leaking/blocked or stuck open/closed
Read more: http://engine-codes.com/p0410_gmc.html#ixzz2H3Wjt8f7

Jan 05, 2013 | 2004 GMC Envoy

1 Answer

Check engine code P0418 comes on


P0418 Secondary Air Injection System Relay 'A" Circuit Malfunction.
The DTC P0418 is detected the the AIR vacuum control solenoid circuit not operating as desired by the PCM.

An air pump is used on the vehicle to lower tail pipe emissions on start-up. The Powertrain Control Module PCM grounds the Air pump relay control circuit which energizes the Air pump. The PCM also grounds the Air combination valve vacuum control solenoid circuit, which energizes the Air vacuum control solenoid. Vacuum is then applied to both Air combination valve diaphragms which opens the shut off valves. The PCM enables both circuits simultaneously when Air system operations id desired. When the AIR system is active, then Air pump forces fresh air into the exhaust stream in order to accelerate catalyst operation. The AIR combination valves replace the conventional check valves. When the AIR system is inactive the shut off valves prevent air flow in either direction.

Symptoms:
- Engine Light ON (or Service Engine Soon Warning Light)
- Engine hesitation

Possible Causes:
- Air Pump inoperative.
- Air bypass solenoid circuit open or shorted.
- Faulty AIR byspass solenoid circuit

Possible Solution:
- Visually inspect AIR pump harness and connector. Repair if necessary.
- Visually inspect AIR bypass valve harness and connector. Repair if necessary.
- Replaced AIR bypass valve
- Replaced Air pump


Hope this helps (remember to rate this answer)

Dec 10, 2010 | 2003 Volkswagen Passat

2 Answers

My 93 cougar like sputters when running. no power, and idles real hard. what could this be?


I'm guessing fuel pump is going. Check for 40 PSI pressure with fuel pressure gauge. Check in engine comaprtment.
Section 10-01: Fuel Tank, Filters, Lines and Electric Fuel Pump 1995 Thunderbird, Cougar Workshop Manual
DESCRIPTION AND OPERATION Fuel Pump, Electric The electric fuel pump:
  • Is part of the fuel pump module.
  • Is located in an internal reservoir in the polyethylene fuel tank (9002) .
  • Is mounted with its inlet at the bottom of the reservoir.
  • Is designed to increase satisfactory pump operation during extreme vehicle maneuvers and steep climbs with low fuel levels.
  • The high-pressure fuel pump module on the 3.8L SFI and 4.6L-2V engines can supply 60 liters (15.9 gal) of fuel per hour at a working pressure of 269.0 kPa (39 psi).
  • The fuel pump module on the 3.8L SC SFI engine can supply 125 liters (29.0 gal) at the same rate and pressure.
  • The fuel pump module has an internal check valve to maintain pressure in the system after the engine is shut down.
  • The fuel pump module also has an internal release valve to provide protection from too much pressure if fuel flow becomes clogged in the fuel filter (9155) , the fuel line is damaged, or other factors.
  • Overpressure is limited to 850 kPa (123 psi) and reduced fuel flow will result if the pressure relief valve is activated.
  • The fuel pump module is protected at its inlet by a nylon fuel filter element (9365) which filters contaminants which could plug or damage fuel pump components.
  • The fuel filter element simultaneously allows passage of small quantities of water which may accumulate within the tank reservoir.
  • The electrical system has a fuel pump control relay in the powertrain control module (PCM) (12A650) which provides power to the fuel pump module through an inertia fuel shutoff switch (IFS switch) (9341) that is normally closed.
  • The electrical system provides power to the fuel pump module through two relays:
    • Fuel pump power relay.
    • PCM power relay.
The current path depends on operating conditions.
  • When the ignition switch (11572) is OFF, contacts of both relays are open.
  • When the ignition switch is first turned to RUN, the PCM power relay energizes and closes its contacts.
  • Power is sent to the fuel pump relay and a timing device in the powertrain control module .
  • The fuel pump module runs through the contacts of the fuel pump relay.
  • If ignition switch is not turned to START, the timing device in the powertrain control module will open ground Circuit 57 after about a second.
  • Opening the ground circuit deenergizes the fuel pump relay, which opens its contacts and de-energizes the fuel pump.
  • The circuitry provides pre-pressurization of the fuel system.
  • When the ignition switch is turned to START, the powertrain control module operates the fuel pump relay to provide fuel while cranking.
  • After the engine starts and the ignition switch is ON, power to the fuel pump module is again supplied through the fuel pump relay. The powertrain control module senses engine speed and shuts the fuel pump module OFF by opening the ground circuit to the fuel pump relay when the engine stops or is below 120 rpm.



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Oct 26, 2010 | 1993 Mercury Cougar

1 Answer

2005 F150 5.4 Cuts off when driving at constant speed and show "Engine Fail Safe Mode" on display. It will crank back up and run for several hundred miles before doing it again. P2112 Throttle Air...


unfortunately no ! Your best bet take it to the dealer . The P0420 always ends up being the catalytic converter ! P2104 isn't throttle air control . P2112 - Throttle Actuator Control (TAC) System - Stuck Closed. Description: This powertrain control module (PCM) fault status indicates the throttle plate is at a lower angle than commanded. Possible Causes:
  • Binding throttle body, stuck closed.
  • Damaged PCM.
Diagnostic Aids: Application Key On Engine Off Key On Engine Running Continuous Memory All GO to DV1
P2104 - Throttle Actuator Control (TAC) System - Forced Idle Description: The TAC system is in the failure mode effects management (FMEM) mode of forced idle. Possible Causes:
  • Open or short in multiple accelerator pedal position (APP) sensor circuits.
  • Damaged APP sensor.
  • Damaged powertrain control module (PCM).
Diagnostic Aids: This DTC is an informational DTC and can be set in combination with a number of other DTCs which are causing the FMEM. Diagnose other DTCs first. Application Key On Engine Off Key On Engine Running Continuous Memory All GO to QE1
P0506 - Idle Air Control (IAC) System RPM Lower Than Expected For Vehicles With Electronic Throttle Control (ETC) Description: This DTC is set when the powertrain control module (PCM) detects an engine idle speed that is less than the desired RPM. Possible Causes:
  • Air intake restriction.
  • Exhaust restriction.
  • Engine mechanical fault.
  • Damaged electronic throttle body (ETB).
  • Damaged PCM.
Diagnostic Aids: This DTC is informational only and it may be accompanied by other DTCs. Diagnose other DTCs first. If other DTCs are not present inspect the intake air system for air restrictions and damage. If no concerns are present, clear the DTC and retest. For All Others Description: This DTC is set when the powertrain control module (PCM) detects an engine idle speed that is less than the desired RPM. Possible Causes:
  • IAC circuit open.
  • Air inlet is plugged.
  • B+ or VPWR to IAC solenoid open.
  • Damaged or incorrect IAC valve.
  • IAC valve stuck closed.
  • VPWR to IAC solenoid open.
  • IAC circuit shorted to PWR.
Diagnostic Aids: Disconnect the IAC valve and look for little or no change in engine RPM as an indication of a stuck or damaged valve. Application Key On Engine Off Key On Engine Running Continuous Memory Vehicles With Electronic Throttle Control (ETC) Refer to the Description, Possible Causes and Diagnostic Aids for the DTC. All others GO to KE1

Jul 03, 2017 | 2005 Ford F-150

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