Question about 2002 Jeep Grand Cherokee

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PO725 Engine speed sensor circuit malfunction

COde PO725 Engine Speed Sensor circuit malfunction. Tach jumps and cover blew off.

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  • cary_brown May 24, 2009

    Thank you i will check it out.

  • chryslerguy May 11, 2010

    are there any other fault codes in the system and what cover blew off?

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Trouble Code: P0725


A/T Engine Speed Sensor Circuit Malfunction

Possible Causes:


Check for trouble codes related to the CKP Sensor

CKP Sensor signal circuit open, shorted to ground or to power

CKP Sensor is damaged or has failed (open or shorted)

Intermittent wiring or connector problems

PCM has failed

Posted on May 24, 2009

  • Michael Masters
    Michael Masters May 24, 2009

    Check all the above. In most cases, your Crank Shaft Position Sensor will be the cause. replace if found to be faulty.

    Your PCM could be damaged as well but, this is highly unlikely.


  • tom elliott Dec 12, 2011

    where is the ckp located on the 4.7 liter jeep grand cherokee limited? and thank you for your input, much appreciated!

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Code po700 and po725 pops up on my 2001 chysler concorde what is it


P0700 is a transmission control system malfunction. And p0725 is a engine speed sensor malfunction.

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Code PO725


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Po725 code on chrysler sebring can it cause the starter to go bad


Hi there:

DTC P0725 - ENGINE SPEED SENSOR CIRCUIT


When Monitored: Continuously after a ignition key is turned from the OFF to RUN

position and/or key is turned from the CRANK to the RUN position.

Set Condition: The code is set when the engine speed sensed by the Transmission Control

Module (TCM) is different than the engine speed reported by the Powertrain Control

Module (PCM) over the Communication Buss.


POSSIBLE CAUSES:

CHECKING SYMPTOMS AND POSSIBLE CAUSES

LOW BATTERY VOLTAGE

BAD CONNECTIONS AT VARIOUS CONNECTORS

CRANK POSITION SENSOR SIGNAL OPEN

CRANKSHAFT POSITION SENSOR GROUND CIRCUIT OPEN

TCM CRANK POSITION SENSOR MONITORING DEFECTIVE



Hope this helps.

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Van will not start code p0725 what to do


Without knowing make or model Po725 is a Chrysler code for Engine Speed Sensor Circuit
Possible Causes- - Open or shorted CKP sensor circuit condition
- Poor CKP sensor electrical connection
- Check communication error between the ECM and TCM
- Failed CKP Sensor
When is the code detected- The P0725 Codes is triggered when TCM does not receive the engine speed signal from ECM. Chrysler description- The Engine Control Module (ECM) monitors the engine speed through the Crankshaft Position (CKP) sensor with the engine running, and send signal to the Transmission Control Module (TCM

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2005 nissan almera,1.5letre.. fault code po725


P0725 NISSAN - Engine Speed Signal

The P0725 Codes is triggered when TCM does not receive the engine speed signal from ECM.

The Engine Control Module (ECM) monitors the engine speed through the Crankshaft Position (CKP) sensor with the engine running, and send signal to the Transmission Control Module (TCM).

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

Possible causes:
- Open or shorted CKP sensor circuit condition
- Poor CKP sensor electrical connection
- Check communication error between the ECM and TCM
- Failed CKP Sensor

Possible solution:
Very common problem with Nissan vehicles, usually replacing the Crankshaft Position sensor takes care of the problem.

Keep us updated.

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I need to locate the vehicle speed sensor on 2006 4 cylinder Nissan ALtima


if its a po725 code its engine speed fault ,replace crank sensor.for vehicle speed there are two identical sensors near each other on trans....one called revolution sensor other is called turbine speed sensor.

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Replaced crank sensor and now Im getting PO725 code.Would it be the camsensor that is giving me this code?


no, that code is for crank sensor:

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Possible Causes: Wiring, CKP/RPM sensor, ECM/TCM

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Codes


PO725 = Engine Speed Input Circuit
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Apr 19, 2010 | 2002 Nissan Altima

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Check engine light with following codes p 1529 p0720 p0715


P1529 indicates that your TCM asked the ECM to turn on the check engine lamp.

The range switch and the output speed sensors are the items that are abnormally affecting the operation of the transmission. The diagnostic logic in your computer can distinguish these issues from one another, so you'll definitely want to do both. You have no diagnostic code for the input speed sensor (P0715) listed, so I have made no recommendation to replace it. In my opinion, it's not a labor-intensive repair, so I wouldn't recommend replacing it unless you have reason to believe it's bad.

DTC - P0720 (OUTPUT SHAFT SPEED SENSOR SYSTEM)
Code No. P0720 Output shaft speed sensor system
If the output from the output shaft speed sensor is continuously 50% lower than the vehicle speed for 1 second or more while driving in 3rd or 4th gear at a speed of 30 km/h or more, it is judged to be an open circuit or short-circuit in the output shaft speed sensor and diagnostic trouble code No. P0720 is output. If diagnostic trouble code No. P0720 is output four times, the transmission is locked into 3rd gear or 2rid gear as a fail-safe measure.
Probable cause
Malfunction of the output shaft speed sensor
Malfunction of the transfer drive gear or driven gear
Malfunction of connector
Malfunction of the TCM

DTC - P0715 (INPUT SHAFT SPEED SENSOR SYSTEM)
Code No. P0715 input shaft speed sensor system
If no output pulse is detected from the input shaft speed sensor for 1 second or more while driving in 3rd or 4th gear at a speed of 30 km/h (19 mph) or more, it is judged to be an open circuit or short-circuit in the input shaft speed sensor and diagnostic trouble code No. P0715 is output. If diagnostic trouble code P0715 is output four times, the transaxle is locked into 3rd gear or 2nd gear as a fail-safe measure.
Probable cause
Malfunction of the input shaft speed sensor
Malfunction of the underdrive clutch retainer
Malfunction of connector
Malfunction of the TCM

Is needed replace.

Nov 04, 2009 | 2001 Hyundai Elantra

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