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My engine model 3512B,i have problen on electrical.ECM,showing on diagnostic code is 47 ecm electrcal and 168.02 that is battery intermitent

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Crank not starting

Posted on Dec 15, 2013

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Posted on Jan 02, 2017

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I have an electrical issue with my Nissan Presage. It is taking about 0.14 on my meter.


some nissan data links have to be switched on by turning a screw in the side of the ECM At the back in the side (RHS)
to do this access the ECM
switch engine on--do not start the engine
turn diagnostic mode selector on ECM fully clockwise
wait 2 seconds
turn diagnostic mode selector on ecm fully counter clockwise
the self diagnosis is now in read mode
I suggest that you take it to a service dealer or an accredited service shop familiar with your vehicle and have them read the codes and show you how to do it at the same time

Nov 16, 2015 | Nissan Cars & Trucks

1 Answer

Where can I get a replacement power probe?


The New Power Probe IV Electrical Diagnostic Tool - YouTube

? 2:47
www.youtube.com/watch?v=krAUIq3bWIg
Oct 17, 2014 - Uploaded by Power Probe The New Power Probe IV electrical diagnostic tool, supplies power and ground, injectors tester, PCM/ECM

Sep 13, 2015 | Farberware 310 A Electric Skillet

1 Answer

My 2006 Chev Impala 3.5l v-6 just showed trouble code P0690. I cleared the code by disconnecting the neg battery lead. It was ok for first start but showed again on the second start. What is it?


POSSIBLE CAUSES FOR THAT CODE OF A CHEVY ARE:
WEAK BATTERY
FAULTY COMPUTER OR ECM (Engine Control Module)
BLOWN ECM FUSE
ECM WIRE HARNESS IS OPEN OR SHORTED
ECM CIRCUIT HAS POOR ELECTRICAL CONNECTION.

Oct 28, 2014 | Cars & Trucks

1 Answer

Electrical issue.


Access ECM on the data link connector . Turn ignition switch on(do not start). Turn diagnostic mode selector on ECM fully clockwise. Wait at least 2 seconds. Turn diagnostic mode selector on ECM fully counter clockwise . Self diagnosis in mode 2 Mil should flash. If the scan tool record s codes or the mil light will flash the codes

Feb 18, 2014 | 1997 Nissan Maxima

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Takes 10 or more trys to start if it sits for several hours if it sits for a couple of days it will start right up


I happened to have owned the exact Model and Year of this car. I did not have this problem but can suggest a few potential parts which can do this.

What you are describing is likely due to a "heat sink" condition in electrical components or failure of the "cold start sequence" to reset.

The cold start sequence needs a water sensor to tell the ECM to reset from driving Mode to Starting Mode. Cars usually have 2 identical sensors with 1 working the dash gauge and the other operating the signal to the ECM. This is a silent failure and usually not picked up by the onboard diagnostics. It is an inexpensive part. But, the ECM could be bad if it does not do anything with the signal. The ECM is expensive.

The other part I have in mind works the same way with the ECM. The O2 sensors also tell the ECM what to do. The cold setting for the O2 is different than the Hot setting. When the O2 is hot, it makes the engine get a signal to run lean, often too lean to start. Sometimes this error is picked up on the onboard diagnostics, but not always. Someone would need to unplug the O2 sensors and test them electrically to see what values they show.

Relays can also cause a problem like yours. After shutting off the engine relays can be hot. These hot relays will cool over time, but the points or coils inside may not work properly when the engine is restarted too soon.

Last, have your battery checked. A hot battery can drop voltage and it may be at that tipping point where electrical values are changed throughout the system.

Nov 23, 2013 | 1994 Mercury Grand Marquis

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Code 2610, engine doesn't start same felling as if the battery too weak to prop up the engine


If a P2610 has been verified do not replace the ECM. Perform the following steps when encountering a P2610.

Turn the IGNITION OFF for 90 seconds. Unplug both the engine control module (ECM) connectors for 90 seconds. After 90 seconds has passed, re-install the ECM connectors. With the ignition on use the Tech2 and clear all codes in the ECM. This procedure should prevent future sets of the P2610. For 2006 and certain 2007 model vehicles, there may also be a calibration update available which addresses P2610 false sets.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.

Aug 07, 2013 | Chevrolet Optra Cars & Trucks

1 Answer

Started with Oil Pressure dropping


DTC P0521: Engine Oil Pressure (EOP) Sensor Performance

The engine oil pressure (EOP) sensor changes voltage based on the engine oil pressure. The EOP sensor is a 3-wire sensor comprising of the signal circuit, the low reference circuit and the 5-volt reference circuit. The engine control module (ECM) supplies 5 volts to the EOP sensor via the 5-volt reference circuit and provides ground via the EOP low reference circuit. The ECM monitors the signal circuit of the EOP sensor to determine the EOP sensor voltage is within the normal operating range of approximately 1-4 volts. When the engine oil pressure is high, the EOP sensor voltage is high and the ECM senses a high signal voltage. When the engine oil pressure is low, the EOP sensor voltage is low and the ECM senses a low signal voltage. The ECM sends the EOP information to the instrument panel cluster (IPC) via GMLAN serial data message.

Conditions for Setting the DTC
P0521
The ECM detects that the difference between the predicted oil pressure and the actual oil pressure is either less than 47 kPa (6.8 psi) or greater than 50 kPa (7.3 psi).

Your best bet ,take it to a qualified repair shop that has the proper diagnostic testing equipment to diagnose this.

Nov 05, 2017 | 2008 GMC Yukon Xl 4WD

1 Answer

Chrysler P0560 code


Generic OBD Error Code Details for P0560 System Voltage OBD II Code P0560 refers to
The battery supplies electricity to the ECM even when the ignition switch is OFF. This electricity allows the ECM to store data such as DTC history, freeze frame data, fuel trim values and other data. If the battery voltage falls below a minimum level, the ECM will conclude that there is a fault in the power supply circuit. The next time the engine starts, the ECM will turn on the MIL and a DTC will be set. SymptomsPossible sumptoms of OBD code P0560
- Engine Light ON (or Service Engine Soon Warning Light) - Slow engine start - Low battery power CausesPossible causes of OBD code P0560
- Loose or missing alternator drive belt - Faulty alternator - Battery defective - Open or short system voltage circuit The Error code is generally activated on detection of the following conditions: The P0560 code is detected when there is an open in ECM back-up power source circuit

Apr 24, 2012 | 2002 Chrysler 300M

1 Answer

What is a code p0601 for a 2008 saturn vue


P0601 ENGINE CONTROL MODULE CHECKSUM ERROR


  • The nerve center of the fuel injection system is the engine control module (ECM)
  • The ECM constantly supervises the information from various sensors, and regulates the systems that start after vehicle performance.
  • The ECM is also empowered to control all the diagnostic functions of the system.
  • It can detect operational flaws and caution the driver through the Malfunction Indicator Lamp (MIL)
  • It also records and stores a Diagnostic Trouble Code (DTC) which detects the likely problem- making parts to help the technician while repairing.
  • In order to house the program information and the calibrations required for engine, trans-axle diagnostics operation an electrically erasable programmable read only memory (EEPROM) is used.
  • For detecting errors in the software the ECM uses a specially devised value known as the checksum.
  • The checksum (self explanatory) is a value that is the sum total of all the numbers in the software added together.
  • If the values recorded by the ECM and the checksum do not match then a checksum error is highlighted.

Dec 17, 2010 | Saturn Vue Cars & Trucks

1 Answer

My check engine light comes on and the performance is sluggish i did a diagnostic test and the code was po607 now the more i drive the engine shuts off and the battery light comes on


http://www.obd-codes.com/p0607

Looks like either a bad battery or a bad ECM (engine computer). The code is happening because the ECM is losing power. Take the battery out and bring it to Autozone or similar store and have them do a "Load Test". If the battery is good, it may be the ECM that would need replacement.

May 29, 2010 | 2007 Toyota Corolla

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