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Fault code p16a4

Engine control module ECM internal circuit malfunction

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: I have a 2002 honda passport.. The engine light is

I need some history, were the spark plugs recently replaced???? if so, take then out and put in the correct spark plug. Nippon Denso plug #K16PR-P11 ...........do NOT use parts from AZ.

Posted on Sep 19, 2009

  • 1 Answer

SOURCE: I have PO500 speed sensor malfunction and a P1791 manufacturer control transmission rec faults. Symtoms: Engine light on, D blinks once in a while and Speedometer works sometimes.

The Speedometer head is faulty, replace speedometer head or whole gauge cluster.

Posted on Mar 25, 2010

Sheikhtijani
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SOURCE: where is the ELD on honda crv 2008

Hi,


P1289 - Cylinder Head Temp Sensor High Input
The A/F sensor is a planar dual-cell limit current sensor. The sensor element of the A/F sensor is the combination of a Nernst concentration cell (sensor cell) with an oxygen-pump cell, which transports ions. It has a heater in the element.

The sensor is capable of precise measurement a= 1, but also in the lean and rich range. Together with its control electronics, the sensor outputs a clear, continuous signal throughout a wide range (0.7 < a< air).

The exhaust gas components diffuse through the diffusion gap at the electrode of the oxygen pump and Nernst concentration cell, where they are brought to thermodynamic balance.

An electronic circuit controls the pump current through the oxygen-pump cell so that the composition of the exhaust gas in the diffusion gap remains constant at a = 1. Therefore, the A/F sensor is able to indicate air/fuel ratio by this pumping of current. In addition, a heater is integrated in the sensor to ensure the required operating temperature of 700 - 800?C (1,292 - 1,472?F).

The response (from LEAN to RICH) of the A/F (Bank 1) signal computed by ECM from A/F sensor 1 signal takes more than the specified time.

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

Possible causes
# Harness or connectors (The A/F sensor 1 circuit is open or shorted.)
# Air fuel ratio (A/F) sensor 1
# Air fuel ratio (A/F) sensor 1 heater
# Fuel pressure
# Fuel injector
# Intake air leaks
# Exhaust gas leaks
# PCV
# Mass air flow sensor



Thank you.

Posted on Jun 07, 2012

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2 Answers

My car won't start and is showing a p1000 code . What does this mean?


P1000 is a manufacturer specific fault code:

Ford P1000: OBDII Monitor Testing Not Complete.
Jaguar P1000: Engine control module (ECM) - internal error.
Kia P1000: System diagnosis incomplete.
Land Rover P1000: Engine control module (ECM) memory erased - no codes stored.
Mazda P1000: OBDII Drive Cycle Malfunction.

So depending on the manufacturer of your car would depend on the meaning of a P1000 code!

Jan 21, 2015 | Cars & Trucks

1 Answer

Trouble code po700 dodge 1500


Many vehicles have a control module for the automatic transmission called a transmission control module (TCM). The engine control module (ECM) communicates with the TCM to monitor the automatic transmission for faults. If the TCM detects a fault in the automatic transmission and sets a transmission related fault code, the ECM is informed of this also and sets a P0700 in the ECM memory. This illuminates the Malfunction Indicator Lamp (MIL) to let the driver know there is a problem. If this code is present and the MIL (Malfunction Indicator Lamp) is illuminated that basically means there is at least one transmission code set in the TCM's memory. P0700 is an informational code only. It doesn't point to a direct fault in the engine, only a general fault in the transmission. More diagnosis is necessary to identify what the transmission fault is. This requires a scan tool that will communicate with the transmission module.

Oct 07, 2014 | 2005 Dodge Ram 1500

2 Answers

What is the code p0473 for a dodge sprinter van 2008


Error Code: P0404
Fault Location:
Exhaust Gas Recirculation (EGR) System - Range/Performance Problem
Causes:
-Hose leak/blockage.
-Wiring harness.
-Exhaust gas recirculation (EGR) valve/solenoid.
Error Code: P0473
Discription:
Exhaust Gas Pressure Sensor - High Input
Causes:
- Wiring short to positive.
- Exhaust gas pressure sensor (G450).
- Engine control module (ECM).
Error Code: P0674
Description:
Glow Plug Cylinder 4 Circuit - Circuit Malfunction
Causes:
-No Pre-Glow Period.
-Poor Cold Starting.
-Glow Plug Wiring faulty.
-Poor connection.
-Relay.
-Glow plug control module.
-Glow Plug faulty.
-Engine control module (ECM).
Solutions:
Check Glow Plug Wiring.
Check Glow Plug.
Error Code: P0675
Description:
Glow Plug Cylinder 5 Circuit - Circuit Malfunction
Causes:
-No Pre-Glow Period.
-Poor Cold Starting.
-Glow Plug Wiring faulty.
-Poor connection.
-Relay.
-Glow plug control module.
-Glow Plug faulty.
-Engine control module (ECM).
Solutions:
-Check Glow Plug Wiring.
-Check Glow Plug.

Sep 20, 2014 | 2008 Dodge Sprinter

1 Answer

Chevy cobalt 2010 scan code po641 reduce engine power


Possible causes
- Faulty Engine Control Module (ECM)
- ECM harness is open or shorted
- ECM circuit poor electrical connection
- Shorted sensor on 5 volt circuit
help.jpg What does this mean? When is the code detected?
The Engine Control Module (ECM) has detected the sensor 5 volt reference circuit voltage is higher or lower than expected
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0641 Chevrolet Description
The control module has 2 internal 5-volt reference buses called "5-volt reference 1" and"5-volt reference 2". Each reference bus provided 5-volt reference circuit for more than one sensor. Therefore, a fault condition on one 5-volt reference circuit will affect the other 5-volt reference circuits connected to the reference bus. The control module monitors the voltage on the 5-volt reference buses.

Read more: http://engine-codes.com/p0641_chevrolet.html#ixzz31AP60YfR

Apr 19, 2014 | 2010 Chevrolet Cobalt

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

Po1682


Here is the definition for code 1682.
Problem could be with the ignition switch, the harness, or the computer.

P1682 CHEVROLET Description There are 2 ignition voltage circuits supplied to the Engine Control Module (ECM). The first ignition circuit is provided by the powertrain relay, through a fuse. This ignition 1 voltage circuit supplies power to all the internal ECM circuits associated with the throttle actuator control (TAC) operation. The second ignition 1 voltage circuit is supplied by the run/crank relay through a fuse, and is used to power the remaining internal ECM circuits. If the ECM detects a voltage difference between the 2 ignition 1 voltage circuits, DTC P1682 will set
Read more: http://engine-codes.com/p1682_chevrolet.html#ixzz25wBbBqGe

Sep 07, 2012 | 2006 GMC Envoy

1 Answer

I have code p0700


The trans axle Control Module (TCM) monitors the malfunction of sensors and actuators relating to trans axle control. When the TCM detects a malfunction with the control, a signal is send to the Engine Control Module (ECM) to trigger the Engine Light or Service Engine Soon light. The ECM stores the P0700 code and it means the TCM detected a malfunction with the trans axle controls.
Possible Causes - Shorted or open circuit within transmission control module (TCM)
- Failure of trans axle control module
Since the P0700 is just and informative code, check the TCM for more codes to resolve the problem.
http://www.helpforcars.net/obd_codes/p0700_suzuki.html

May 01, 2011 | Suzuki Forenza Cars & Trucks

1 Answer

I have a 2005 grand prix se.....a yellow engine light just came on...I can't find my book...what does this mean.


The yellow light that looks like a picture of an engine is commonly called the "Check Engine" light. It is also called the "Malfunction Indicator Light" (MIL)

The engine and transmission control computers monitor several circuits and systems critical to the proper operation of your engine and trasmission. When there is a problem one of these circuits or systems, the Engine Control Module (ECM) or Powertrain Control Module (PCM) turns the light on to let you know that there is a problem. It will also store a "Fault Code" in memory. To find out what the problem is, a service technician must first scan the ECM or PCM to retrieve the fault codes in order to diagnose and repair the problem.

A little information about fault codes: Contrary to popular belief, fault codes do not tell a mechanic what parts to replace. (There are many so-called mechanics that can't seem to grasp this) Fault codes only indicate which circuit or monitored system has a problem. The mechanic that works on your car must check out the problem circuit or system to see what is actually causing the problem.

Dec 18, 2010 | 2005 Pontiac Grand Prix

1 Answer

I have a 1992 gmc sonoma 2 wd 4.3L throtle body i am getting the service engine soon light and I checked the codes and I get number 42- Electronic spark timing bypass circuit or EST circuit is grounded...


CODE 42 Trouble Code 42 indicates that there may be a malfunction in the Electronic Spark Timing (EST) system.
During cranking, the timing is controlled by the ignition module while the ECM monitors the engine speed. When the engine speed exceeds 400 RPM, the ECM sends a BYPASS signal to the ignition module which switches the timing to ECM control. The ECM calculates what the timing should be then "tells" the ignition module via the EST circuit.
An open or ground in the EST circuit will stall the engine and set a Code 42. The engine can be re-started but it will run on ignition module timing.
The conditions for setting this code are:
  • System in BYPASS mode but the ignition module is still controlling timing
    - or -
  • Engine speed > 600 RPM with no EST pulses (ECM controlled timing) going to the ignition module for 200 msec.


Typical causes for this code include:
1) BYPASS line is open or grounded
2) EST line is open or grounded
3) PROM or CALPACK not seated properly in the ECM
4) Poor connections between ignition module and ECM
5) Poor routing of EST harness and/or poor quality ignition wires (EMI induced electrical noise)
6) Faulty or incorrect ignition module
7) Faulty ECM


Thank you for using fixya and keep us posted

Oct 10, 2010 | 1992 GMC Sonoma

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