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P1605 code this code coming how to solvs this code

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Go to www.aa1car.com and get the topics for OBII and fix it.
God bless you

Posted on Jul 23, 2013

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Toyota senna 2011 code P 1603,P1604,P1605 car not star


These codes are indicating a starting problem and rough idling. Code p1604 is a very vague code and diagnosing it without having a symptom is very complicated. And code p1605 is rough idling which means that the computer have noticed a rough idle situation usually this code is accompanied by other codes or if it's alone then I would suspect a fuel pressure issue. These two codes involve diagnosis and we'll need to dig into this problem deeper to find out what's causing them, Unless you are an experienced technician who need assistance then I will suggest that you take your vehicle to your local toyota dealership and they should be able to find the problem.

p1603 should help by reading this below
http://corolla-club.ru/doc1/c61151d7ba7b9bee3c247e42b685b253.html

Feb 12, 2016 | Toyota Cars & Trucks

1 Answer

What are the probable causes of DTCs P1603, P1604, and P1605?


OBD-II code P1603 indicates an issue with TCU communication.
There are communications that exist between the engine control module, or ECM, and the transaxle control module, or TCM. This communication is done through a control area network, or CAN. With the communication of the CAN, an independent pin and wiring is needed to receive a signal that includes sensor information from the ECM. The more information there is to communicate, the more wiring that is needed. When it comes to CAN communication, all of the information communicated is done alone control modules like the ECM and TCM using CAN lines. When there is a problem with these lines, the ECM will detect the problem and store a P1603 trouble code; the storing of the trouble code is what causes the SES or check engine light to illuminate on the dash.
Possible causes of trouble code P1603 include:
  • Faulty transaxle control module (TCM)
  • Faulty engine control module (ECM)
  • Harness running from the TCM to the ECM has a short
  • There is a poor electrical connection between the TCM and ECM
Diagnosing the exact cause of the problem should always begin with a visual inspection that could reveal bad wiring, loose connections, or damaged parts. From there, it is a matter of running down the list to determine what needs to be replaced. In general, a bad ECM will cause a loss of power, poor fuel economy, and stalling engine. While a bad TCM will have more prevalent transaxle issues like erratic shifting
P1605 and P1605
These codes are indicating a starting problem and rough idling. Code p1604 is a very vague code and diagnosing it without having a symptom is very complicated. And code p1605 is rough idling which means that the computer have noticed a rough idle situation usually this code is accompanied by other codes or if it's alone then I would suspect a fuel pressure issue. These two codes involve diagnosis and we'll need to dig into this problem deeper to find out what's causing them, Unless you are an experienced technician who need assistance then I will suggest that you take your vehicle to your local toyota dealership and they should be able to find the problem.
P1P

Feb 12, 2016 | 2011 Toyota Sienna

1 Answer

I have 2000 mustang 3.8 n it shakes really bad n code p1633 comes back. Whats wrong n how do i fix it


Hello Paige ! It sounds like you have a sick vehicle , lets see if I can help you fix it . Well the code you have has to do with lack of voltage to the ECM -engine control module.
P1633 - Keep Alive Power Voltage Too Low Indicates that the Keep Alive Power (KAPWR) circuit has experienced a power interrupt.
  • Open KAPWR circuit
  • Damaged PCM
  • Intermittent KAPWR Circuit
2000 PCED On Board Diagnostics II SECTION 5: Pinpoint Tests Procedure revision date: 01/31/2001 QB: Diagnostic Trouble Code (DTC) P0603/P1605/P1633 > QB: Introduction QB1 CHECK BATTERY TERMINALS
    Note: If KAPWR is interrupted to the PCM (that is, when a breakout box is installed or the battery is disconnected), DTC P0603/P1605 can be generated on the first power-up.
  • Inspect the battery cables for loose connections, corrosion.
Are the battery terminal connections in good condition? Yes No KEY OFF. Battery terminals are OK. GO to QB2 . REPAIR battery terminals as necessary. QB2 INSPECT ENGINE COMPARTMENT FOR PROPER WIRE ROUTING
  • Inspect Electronic Engine Control (EC) System wiring for proximity to ignition components or wires.
Is wiring too close to ignition components or wires? Yes No REROUTE as necessary. Engine compartment wire routing is OK. GO to QB3 . QB3 CHECK KEEP ALIVE POWER (KAPWR) TO PCM
    Note: Refer to the PCM connector pin numbers in the beginning of this pinpoint test.
  • Disconnect PCM.
  • Measure voltage between KAPWR circuit at the PCM harness connector and ground.
  • While observing digital multimeter, grasp the Electronic EC harness and wiggle, shake or bend a small section while working from the PCM to the dash panel.
Does the voltage reading indicate less than 10.5 volts? Yes No ISOLATE and REPAIR open circuit. No open in KAPWR harness circuit detected. GO to QB4 . QB4 CHECK FOR REPEAT OF DTC P0603/P1605/P1633
  • Reconnect PCM.
  • Start engine and allow it to reach operating temperature.
  • Run Key On Engine Off Self-Test.
  • Retrieve Continuous Memory DTCs.
Is DTC P0603, P1605 or P1633 present? Yes No REPLACE the PCM. REPAIR other DTCs as necessary. If none, testing is complete. You may want to take this to the repair shop , do you own a volt ohm meter ? Do you know how to use one ?

Mar 14, 2015 | 2000 Ford Mustang

1 Answer

Error code p1605


would advise clearing code and see if comes back on ,may seem a bit of a funny way of working but many codes just flash a problem and then get stored in memory when theres no actual fault

Mar 31, 2014 | Land Rover Freelander Cars & Trucks

1 Answer

While coming to a stop, my 2004 Nissan frontier died. Checked fuel pump, it did come on, checked to see if getting fire. Could not get fire from any plug wires. Checked codes came up with P0340 &...


Sorry to the bearer of bad news but i have a funny feeling your ECU unit has failed ,where is it located on this vehicle anywhere near the engine where it can get hot?

Nov 29, 2013 | 2004 Nissan Frontier XE

1 Answer

P1605 toyota


go to www.aa1car.com and get the topic OBDII and fix it.
God bless you

Jul 23, 2013 | Cars & Trucks

1 Answer

Error code P1605 and P1775 on 2004 Land Rover Freelander


P1605....Serial data communication problem with HVAC modul
P1775 Transmission system MIL fault
Go to the repair shop , for scanner and computer test.
The best (safest)way to erase trouble codes is to use a scan tool. The tool communicates with the vehicle computer and tells it to erase the codes. It does not alter any other learned settings that should be retained for normal vehicle operation.
The worst way to clear codes is to disconnect the battery. In most older vehicles (those made before 1996), disconnecting the battery even for a few seconds, or removing the power fuse for the engine computer (PCM) will erase the codes, along with all of the other learned settings the computer has stored over time.

Sep 18, 2012 | 2004 Land Rover FreeLander

2 Answers

Nissan sentra 4cyld


Hi, you have provided trouble codes p0100 AND p1605.


Trouble Code: P0100


Mass Airflow Sensor Circuit Malfunction
Possible Causes:



Air Intake leaks located after the MAF sensor assembly MAF sensor signal circuit is open, shorted to ground or power MAF sensor has failed PCM has failed


Trouble Code: P1605

A/T Diagnosis Communication Line Malfunction

Possible Causes:


TCM communication line circuit is open or shorted to ground TCM communication line circuit shorted to VREF or power (B+) TCM or PCM has failed TSB 01-004 (01/01) contains information related to this code
For the P0100, check the connector on top of the MAF sesnor for looseness or corrosion. Connector is on top in piocture below. jturcotte_361.jpg

Mar 25, 2011 | 2000 Nissan Sentra

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