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Whats the difference between a current code and a pending code?

P1800 current code clears, pending code clears with scanner.. sometimes

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Pending codes and current codes are basically the same. Pending codes are for a problem that is still indicated to be a problem,but hasn't been cleared. Current codes are codes that are indicated for the current drive cycle. Usually will both be the same code if problem still exists and hasn't been cleared without repair.

Posted on Jun 14, 2014

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Posted on Jan 02, 2017

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joelwilcox
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SOURCE: what is a kia rio p1800 error code mean?

P1800
Engine torque signal malfunction
Threshold Value ~ Circuit continuity: Open or shorted
Enable Conditions ~ NA
Time Requirements ~ Continuous
MIL Illumination ~ No MIL illumination
Related Items
1)Open between TCM (C221-41) and ECM (C254-68).
2)Short to B+ or GND between C221-41 and C254-68.



STEP
INSPECTION
Y/N
ACTION
1
With ignition off, disconnect C254 from ECM and C221 from TCM. Measure resistance between C221-41 and C254-68 (less than 1 ohm).
Is resistance as specified?
YES
Go to step 2.
NO
Locate source of open or high resistance and repair as necessary.
2
Measure resistance between C254-68 and GND (infinite resistance).
Is resistance as specified?
YES
Go to step 3.
NO
Locate source of short to GND and repair as necessary.
3
Turn ignition on and measure voltage at C254-68 (0v).
Is voltage as specified?
YES
Thoroughly check for loose, bent or corroded terminals in circuit than go to step 4.
NO
Locate source of short to B+ and repair as necessary.
4
Clear codes and return vehicle to original condition. Verify any repairs by driving vehicle with KIA Data Pro connected to OBD-II connector and monitoring for pending codes (refer to section 3 of the KIA Data Pro Generic OBD-II Program Card reference manual).

Posted on May 29, 2010

  • 24 Answers

SOURCE: Hi I took my nissan

Hopefully this link will tell you what you need.

 

http://nissanhelp.com/diy/obd_codes/p1800_nissan.html

Posted on May 22, 2011

  • 1 Answer

SOURCE: 1999 f350 superduty dash light with the (!) came on what is it for

Sounds like the low tire pressure indicator. Check the air pressure in all 4 tires. If thats not the problem then it could be a sensor gone bad. Cold weather sometimes plays havoc with the tire pressure

Posted on Feb 23, 2012

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Nissan maxima p1800 code and transmission issues, related??


Clean or replace the mass air flow sensor , clear codes and road test

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Evap code cleared not ready showing


The EVAP monitor is a pain to set. It needs 2 full drive cycles and will not reset sometimes if an EVAP code is pending. Check the pending codes with your code tool and see if there are any for the EVAP, if not, like I said, the EVAP is a tough monitor to set.



How many other monitors are not ready?

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Engine looking idiot light came on and van rumbled. was doing 60mph and could not for faster. light went off and came on 3 times. has not been on since. cannot have it checked until it comes on. was t


can still check it with the proper scanner that shows current & pending codes.

Have it scanned for free at most auto parts stores.
Let them know it can be a pending code.

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P1760 AND P1800


if you need a tool you can click here: spobd2.com

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1999 f350 superduty dash light with the (!) came on what is it for


Sounds like the low tire pressure indicator. Check the air pressure in all 4 tires. If thats not the problem then it could be a sensor gone bad. Cold weather sometimes plays havoc with the tire pressure

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2 Answers

What is a kia rio p1800 error code mean?


the code is for engine torque signal malfunction.its either a short to voltage or ground in between engine computer and transmission computer. or a bad trans computer [tcm] manuel says check for shorts or bad connections at the connectors from ecm to tcm then states if no wire problems found then try a new tcm and if problem goes away then install new tcm.i know those instructions are lame but it comes from the kia service manuel. there are no tsb or recalls listed for that code. so i would recomend take to dealer because they would have a known good tcm to try.plus if you bought the car new then the 10 year 100,000 mile warranty may still be in effect beings how its a powertrain issue so if less than 100,000 miles and you bought it new it wouldnt hurt to ask them if it might be covered

May 29, 2010 | 2002 Kia Rio

1 Answer

Check engine light on code p1800 amd p650 is it


CODE PO1800 VIAS CONTROL SOLENOID VALVE CIRCUIT. I DID NOT SEE CODE PO650 BUT CODE PO1800 IS A FAULTY VIAS CONTROL SOLENOID VALVE.

Apr 23, 2010 | 2002 Nissan Altima

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Hi i have 02 altima 3.5 v6 who have check engine light with code p1800 what is manufactured transmission control can anyone help me what that means?


You may want to have someone else take a look at it. The Nissan P1800 trouble code is not a transmission control problem. It is described as follows:

Trouble diagnosis name: VIAS control solenoid valve circuit.
Component Description:
The VIAS control solenoid valve cuts the intake manifold vacuum signal for power valve control. It responds to ON/OFF signals from the ECM. When the solenoid is off, the vacuum signal from the intake manifold is cut. When the ECM sends an ON signal the coil pulls the plunger downward and feeds the vacuum signal to the power valve actuator.
DTC detecting condition:
•An excessively low or high voltage signal is sent to ECM through the valve.
Possible cause:
•Harness or connectors (The solenoid valve circuit is open or shorted.)
•VIAS control solenoid valve

Check your vacuum hoses to make sure they are in good shape and are securely attached Aslo check the wiring harness is ok and securely attached as well. If they are, you’ll probably need to replace your VIAS. It's right next to the throttle body.

Jan 25, 2010 | 2002 Nissan Altima

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I have a 2003 ford escape. Check engine light came and my code showed P1405 code. Replaced EGR valve and sensor. Code does not show up on pocket scanner, but the escape stills loses power and will barely...


On alot of cars you must erase the code after repairs,the code is pending in the memory and can still run bad till cleared.try clearing the code

Jan 12, 2010 | 2003 Ford Escape

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