Question about 2007 Isuzu Ascender 7 Passenger

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Probable cause: BB1 - computer improperly programmed BB@ - Failed ECM

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  • dmorris1217 Oct 02, 2009

    I'm not sure thats just what the paperwork states from the check engine light being checked

  • dmorris1217 Oct 02, 2009

    I think thats just the code

  • dmorris1217 Oct 03, 2009

    P0601

  • yadayada
    yadayada May 11, 2010

    what is BB1

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That is meaningless info. a code for a check engine light looks like this P1230 (example only) one letter 4 numbers

Posted on Oct 02, 2009

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1 Answer

P0443 purge Evaporative Emission Control System Purge Control Valve Circuit Malfunction


Other probable causes:
1. Damaged or corroded connector terminal
2. Wire harness. Check for voltage, open, short to ground, short to voltage
3. Control unit in need of updating. This is not the same as simply resetting.
4. Faulty PCM or ECM
5. Vacuum leaks. Damaged hoses or improper routing
6. EVAP system problem(s). Check fuel cap, canister, valves and components

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I replaced evap vent solenoid & dtc came back


Here is the definition of the code and possible causes.

P0449 PONTIAC Description The Engine Control Module (ECM) monitors the Evaporative Emission System (EVAP) Vent Valve/Solenoid system wiring for opens or shorts.

When is the code detected?The Engine Control Module (ECM) has determined that a malfunction exists in the electrical circuit for the vent valve/solenoid in the evaporative emission control system.

Possible causes - Vacuum leaks, damaged hoses or improper routing
- EVAP system - Check fuel cap, canister, valves or components
- Faulty purge or vent solenoids
- Check connector and wiring
- Fuel saturated vapor canister
- Failed EVAP vent solenoid
Read more: http://engine-codes.com/p0449_pontiac.html#ixzz2M1YJd7DU

Feb 26, 2013 | 2002 Pontiac Grand Prix

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Multiple engine codes 2001 chry town and country engine barely runs it surges, spits and sputters the main codes are po601 and po206


P0601 : ECM internal Failure.
it said that the ECM is unable to communicate with the SPI line.
probable causes:
shorted input sensor
shorted electrical circut
failed ECM .
------------ P0601 is Internal Controller Failure- Common repair is Install new PCM and program it. -------- The other code is related, Best thing to do, so you do not replace every part by trial and error, in this case have a pro hood up his computer and he can break it down to the main cause to fix that code, and the other one that is related. Thanks, MIke. Please rate my free advice accordingly

Sep 19, 2011 | 2001 Chrysler Town & Country

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Can you please tell what are these codes for 1997 dodge caravan sport.p1698 and p1495.


P1698 Chrysler

ECM fault-No CCD message from TCM
- Failed ECM

Probable Cause[s]

  1. Open CCD bus line
  2. Failed TCM
P1495 Chrysler

EVAP leak detection pump solenoid circuit condition
- ECM detected the pump solenoid did not change status when activated

Probable Cause[s]

  1. Pump solenoid defective
  2. Open or shorted circuit condition
  3. ECM Defective

Feb 08, 2011 | 1997 Dodge Caravan

4 Answers

P0601 diagnostic code what is the mean , or whats is the problem


P0601 - Internal Control Module Memory Check Sum Error

Basically that means that there is an interal fault in the Powertrain Control Module (PCM). There have been many reported PCM failures on Chrysler/Dodge products although it is possible for this to happen on any vehicle. In Dodge/Chrysler products, a P0601 trouble code means that a serial communication failed inside the computer at least 6 times.

Symptoms: Likely, no symptoms will be discernible to the driver, other than the illuminated Check Engine Light. Typically the engine runs fine, gauges work, etc.

Causes: A code P0601 in most cases means the PCM has gone bad. This is possibly due to a short-circuit inside the PCM. Or, if you disconnect the wires/connector from the PCM while the battery is still connected, that may also cause this code.

Possible Solutions: With a P0601 OBD-II trouble code, the most common fix is to replace and reprogram the PCM. In a few cases the dealer may be able to reflash the PCM and get it working. But more than likely the PCM will need to be replaced and reprogrammed (we recommend you take it to a dealership for this). The good news is it *may* be covered under your emmissions warranty. So even if you're out of bumper-to-bumper warranty or powertrain warranty, check your warranty guide or dealer to see if this is covered.

Other people have reported that they cleared the code only for it to return again and again. Keep in mind that most shops can replace the PCM but not all can program it.

Other PCM / ECM Codes: P0602, P0603, P0604, P0605, P0606, P0607, P0608, P0609, P0610.

Hope this help to solve it (remember rated this).

Aug 03, 2010 | 2001 Dodge Stratus

1 Answer

Have a 2001 tiburon showing engine light went to auto zone had codes p1624 p0733 p0734 p1624 bblow cooling fan relay cicuit fault probable cause BB1open or short circuit condition BB2 poor electrical...


Take/Tow your vehicle to an authorized Hyundai dealership and pay the diagnostic fee... they will tell you exactly what the problem is and the cost of parts/labor to fix it... at least this way you'll know what the problem is and what's required to fix it.

Sep 26, 2009 | 2001 Hyundai Tiburon

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2001 Jetta TDI - Sluggish with black smoke


not usually you would hear a vacuum leak

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Check Engine Light On


Sounds like a bad oxygen sensor. Consult a mechanic for troubleshooting.

Jul 14, 2009 | 2002 Volkswagen Beetle Turbo S

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Check engine light - sensor 2


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