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Code Po2405 Po1351 Ic current high voltage

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If you do not know how to do the fault code, you can go to a shop, and they should point you in the right direction OBD2Guide com Technical service for OBD2 auto scan tools

Posted on Apr 23, 2014


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Posted on Jan 02, 2017


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2004 caravan 3.3 OBD code P2308 ignition coil "C" secondary circuit ? No spark to cylinder 6 & 3 ? plugs & wires good & new coil pack ??

This code could also mean the transistor inside the engine computer is fried . New PCM/ECM needed .

P2308 Dodge Description The current flow, or dwell, through the primary ignition coil is controlled by the Powertrain Control Module (PCM) by providing a switched ground path through the ignition coil driver to ground. When the ignition coil driver is switched on, current rapidly builds up to a maximum value, determined by the coil inductance and resistance. When the current is switched off, the magnetic field collapses which induces a secondary high voltage surge and the spark plug is fired. This high voltage surge creates a flyback voltage which the PCM uses as a feedback during the ignition diagnostics. The PCM continuously monitors the ignition system for concerns. The P2308 code sets when the PCM detects a short to voltage in the circuit.

Videos on youtube for testing Computer drivers . Chrysler Pacifica misfire codes p2308 p0303 Doesn't matter this a chrysler . Dodge , Chrysler and Jeep , samething

Jan 30, 2017 | Cars & Trucks

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I have a 2010 dodge grand caravan.replaced both 02 sensors and i have a code po138 and po404.what does that mean.

P0138 - Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 2)

Fault codes never say to replace parts. They only indicate the circuit or system that needs further diagnosis. The only way to set this code is to have a break in the sensor's ground wire or the signal voltage wire is shorted to the 12 volt heater wire for that sensor. Start by looking for a corroded terminal in the sensor's connector or a terminal that got stretched or pushed out of the plug body. Next, check the wiring harness for signs of melted wires, especially where they travel near hot exhaust parts.

If you haven't found the cause by this time, use a scanner to view live data and look at the sensor's voltage compared to the passenger side sensor. If it's normal, you have an intermittent problem that isn't currently acting up. Try flexing on the wire harness to see if the voltage changes. If the voltage IS high, unplug connectors going to that sensor and wiggle harnesses until the voltage changes. That will help you narrow down the location of the problem.

Oct 17, 2016 | Dodge Grand Caravan Cars & Trucks

1 Answer

2006 grand prix gxp 5.3. When you are driving normally it will miss from 50mph and up. When you punch it it doesn't miss a beat. I cleaned the maf sensor and air filter, Plugs were replaced.

It's probably a coil breaking down , have a scan tool hooked up an have misfires checked to see which cylinder is missing .
Ignition Coils
Each ignition coil has an ignition 1 voltage feed and a ground. The engine control module (ECM) supplies a low reference and an ignition control (IC) circuit. Each ignition coil contains a solid state driver module. The ECM will command the IC circuit ON, this allows the current to flow through the primary coil windings for the appropriate time or dwell. When the ECM commands the IC circuit OFF, this will interrupt current flow through the primary coil windings. The magnetic field created by the primary coil windings will collapse across the secondary coil windings, which induces a high voltage across the spark plug electrodes. The coils are current limited to prevent overloading if the IC current is held high too long. The spark plugs are connected to their respective coils by a short secondary wire. The spark plugs are tipped with iridium for long life and efficiency.
Drive it long enough like that (with it misfiring ) the check engine light will flash . This is to warn that a catalytic converter damaging event is taking place . This would also set a DTC - diagnostic trouble code
DTC Descriptors ?€¢
DTC P0300 Engine Misfire Detected

DTC P0301 Cylinder 1 Misfire Detected

DTC P0302 Cylinder 2 Misfire Detected

DTC P0303 Cylinder 3 Misfire Detected

DTC P0304 Cylinder 4 Misfire Detected

DTC P0305 Cylinder 5 Misfire Detected

DTC P0306 Cylinder 6 Misfire Detected

DTC P0307 Cylinder 7 Misfire Detected

DTC P0308 Cylinder 8 Misfire Detected

Apr 26, 2016 | Cars & Trucks

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Where is fuel pump harness on a 2000 escalade

DTC P1351 Ignition Coil Control Circuit High Voltage
The enhanced ignition system uses the crankshaft position (CKP) sensor in order to provide a timing input to the control module. Ignition control (IC) spark timing for each cylinder is based on this input. The control module provides the ignition timing signal to the ignition control module (ICM) to control the ignition coil. Each timing pulse detected by the ICM allows it to energize the ignition coil. A large secondary ignition voltage is induced in the secondary coil by the primary coil. This high voltage is switched to the correct spark plug by the distributor.
This diagnostic trouble code (DTC) will set if the VCM- (vehicle control module ) detects an unusually high voltage on the ignition timing signal circuit.
Diagnostic Aids
Intermittent test -- If the connections and the harness check OK, monitor a digital voltmeter connected between VCM terminal C3 pin 9 and C4 pin 18 while moving related connectors and wiring harness. If the failure is induced, the voltage reading will change. This may help to isolate the location of the malfunction.
An intermittent may be caused by any of the following conditions:
A poor connection

Rubbed through wire insulation

A broken wire inside the insulation
Thoroughly check any circuitry that is suspected of causing the intermittent complaint. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.
If a repair is necessary, refer to Wiring Repairs or Connector Repairs in Wiring Systems.
Check out this guy's video on GM fuel pump electrical circuit diagnosis !

GM Fuel Pump Relay Testing

Apr 21, 2016 | Cars & Trucks

2 Answers

How to fix emission system problem code p0499 what part is it and how to fix it

code p 0499 refers to emission evaporative system vent control---circuit high===causes ---wiring short to positive ---EVAP valve
replace the EVAP valve

Nov 10, 2015 | 2006 Jeep Commander

1 Answer

1996 Sierra ext cab pickup. What causes the ignition coil to melt?

Too much current will cause the wiring and coil to melt. Need to find out why the current is so high so as to cause this.
If voltage is too high that will cause the hassle

Amperage = voltage/resistance. If voltage is higher and resistance stays level the current flow thru circuit goes up. Causes heat buildup and eventual meltdown in bad case.

Aug 06, 2015 | GMC Cars & Trucks

2 Answers

Gm trouble code po2405

May have to go to a dealer and ask them what code this is I'm not sure.

Apr 23, 2014 | 1999 GMC Suburban

1 Answer

I have a P0A94 CODE and PA094 pd

prius huh, one of the most complex cars made and you want
DIY diagnosis? ever work high voltage and currents?

if not get it fixed.
first connect a prius aware scan tool and see if there are more DTCs.
Trouble Code: p0a94
DC / DC Converter Performance
Trouble Code Conditions:
The monitor will run whenever the following DTC is not present: - Boost converter overvoltage (OVL) signal detection (circuit malfunction)
Possible Causes:
  • * Inverter with converter assembly

this is high voltage system, and has killed mechanics fiddling it with out HV certifications.

Feb 27, 2014 | 2009 Toyota Prius

1 Answer

Our 2005 Volkswagen Jetta code P0480 will not go off. What part is needed to correct this problem?



Details of the Circuit

  • The cooling fan relay coil receives the Ignition Voltage directly.
  • The relay is regulated by grounding the control circuit via the driver or the internal switch, a process which is entirely controlled by the ECM.
  • The driver has been specially devised to supply the ground for the component being controlled.
  • The ECM monitors the fault line which every driver has.
  • When the ECM is commanding a component ON, the voltage of the control circuit needs to be low (near 0volts).
  • When the ECM is commanding the control circuit to a component OFF, the voltage potential of the circuit should be high (near battery voltage).
  • The fault line status will automatically change causing the DTC to set if the fault detection circuit senses a voltage different from what is expected.
  • In order to control the high current flow to the cooling fan motors assistance of the relay is sought.
  • This enables the ECM driver to handle the relatively low current used by the relay
I will continue on next comment as comment section only allows so much content on post so, please read on with my next comment to continue information on this issue, thanks Mike

Aug 07, 2011 | Volkswagen Jetta Cars & Trucks

1 Answer

I have an error code of 53 on my 93 suburban. checking the voltage at the battery while running is 14.4 volts same voltage at the pcm checking and fixing every little possible thing related has not helped....

The 14.4 is high but not unusually so. The code may have been produced by glitch or a failing regulator or a corroded connector. That higher voltage shouldn't remain that high once the battery is charged. A charged battery should have very close to 12.6 ( I have often measured 12.65) volts with no load and no charging current.

Oct 08, 2009 | 1993 Chevrolet Suburban

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