Japanese Model Toyota Mark II GX110 is Giving Code 15 and P1305, P1310.

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You have an at times fault which is loss of spark on all four cylinders. Worse case is the engine control module (quite expensive) so lets keep that for last cause. If it were to fail it would more than likely 100% of the time. Therefore the most likely causes are either a dirty connector or loose ground. See image 1&2 below to uncover coil on plugs. locate connector plugs common to all four plug wires. There are two junction connectors A & B. With key off remove connectors, check for bent pins and spray with DOXIT a radio shack product that is a great No Touch pin cleaner. Replace connectors. One wire from each of the four coil on plug wires leads back to the ECM (Electronic Control Module) Connector A (it is labeled). disconnect and perform same procedure using spray. Reconnect...you'll need to clear codes by disconnecting positive battery terminal for 3 minutes. Test run vehicle to see if troubles have cleared...If not; do you have a multimeter and a wee bit of experience using one? If so put on lowest ohm setting...Hold one terminal on the negative battery terminal...right on the post...Hold the other on bare metal of chassis as in fender...record reading...While holding lead on battery terminal move the other lead to metal of engine block...record readings...Must be close to zero ohms about 1 to 200...If readings are around 2000 ohms the car has an inadequate ground...If so send me a [email protected]





















I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867

Ok for code p1300 replace ignition coil 1 and 4 cilynder and for p1310 replace ignition coil 2 and 3 cilynder

Shop manual should cover this.

DTC P1315 is Igniter Circuit Malfunction (No.2).
Check No. 2 ignition coil.
See the link below for more information from a 2000 to 2002
Toyota Echo Service Manual.
Diagnostics: Engine: P1300, P1305, P1310, P1315 Igniter Circuit Malfunction (Echo)

Hope that helps.

P1300 Igniter Circuit Malfunction / 14
P1305 Igniter No. 2 Circuit Malfunction / 15
P1310 Igniter No. 3 Circuit Malfunction /15
P1315 Igniter No. 4 Circuit Malfunction

What is P1300,1305 1310 on a Toyota

They are MFG Specific

Get them and I will try and offer some suggestions

302 is #2 but Iam thinking if you find that
those other codes are Cam Sensors, then
we will discuss that

P1300 = ignition system malfunction (#1 coil/igniter circuit fault)
P1305 = same as above but #2 coil
P1310 = #3 coil
P1315 = #4 coil

Try a new plug . Switch wires just to rule them out. Do a compression test on that cyld.

Sent is just now. Let me know if you get it. GLad to help, and Thanks for choosing FixYa!