P1300 on Toyota
Igniter Circuit Malfunction – No. 1
P1300 on Toyota vehicles indicates igniter circuit malfunction – no. 1. Au7o has documented this code across 1 Toyota model — most commonly on Corolla. Manufacturer-specific powertrain code used by Toyota and Lexus. The ECM sends an ignition timing signal (IGT) to the igniter/ignition coil and expects an ignition confirmation signal (IGF) back; when no IGF is returned for ignition circuit No. 1 (cylinder #1 on direct-ignition engines), the ECM sets P1300. The result is a dead or intermittent ignition circuit, so the engine may misfire, idle roughly, lack power, stall, or not start at all. Because P1xxx codes are manufacturer-defined, P1300 on a non-Toyota vehicle can mean something entirely different — confirm against that make's service information. Typical repair costs on Toyota range from $15 to $700, depending on the specific model and root cause.
Common Causes of P1300
- •Failed ignition coil with integrated igniter on cylinder No. 1
- •Faulty external igniter / ignition control module (on models that use one)
- •Damaged or corroded ignition coil connector, or an open/shorted IGT or IGF wire
- •Worn, fouled, or incorrectly gapped spark plug loading the coil
- •Poor coil ground or a chafed/shorted harness near the valve cover
- •Failed ECM ignition driver (uncommon — verify wiring and coils first)
P1300 on Toyota by Model
Toyota Corolla(1 issue)
- Distributor failure: internal ignition coil/igniter breakdown and shaft O-ring oil leak1993-1997
These Corollas use a distributor that houses the ignition coil, igniter, and (on 1993-1995) the crank/NE pickup coil internally. Heat cycling kills the internal coil and igniter over time, and the crank-signal pickup can fail after the engine warms up. Separately, the distributor shaft O-ring hardens and lets engine oil seep out around the distributor base and, in worse cases, wick inside the cap. The classic symptom is a car that starts and runs fine cold but stalls once fully warmed up (roughly 30-45 minutes) and will not restart until it cools. Aftermarket replacement distributors are notoriously unreliable, so a good used OEM or a genuine Toyota unit is the community-preferred fix.
Looking for P1300 on a different make?
View P1300 across all makes →Frequently Asked Questions
What does P1300 mean on Toyota?▼
P1300 stands for "Igniter Circuit Malfunction – No. 1." Manufacturer-specific powertrain code used by Toyota and Lexus. The ECM sends an ignition timing signal (IGT) to the igniter/ignition coil and expects an ignition confirmation signal (IGF) back; when no IGF is returned for ignition circuit No. 1 (cylinder #1 on direct-ignition engines), the ECM sets P1300. The result is a dead or intermittent ignition circuit, so the engine may misfire, idle roughly, lack power, stall, or not start at all. Because P1xxx codes are manufacturer-defined, P1300 on a non-Toyota vehicle can mean something entirely different — confirm against that make's service information. On Toyota specifically, this code is documented across 1 model.
What causes P1300 on Toyota vehicles?▼
Common causes on Toyota: Failed ignition coil with integrated igniter on cylinder No. 1, Faulty external igniter / ignition control module (on models that use one), Damaged or corroded ignition coil connector, or an open/shorted IGT or IGF wire, Worn, fouled, or incorrectly gapped spark plug loading the coil, Poor coil ground or a chafed/shorted harness near the valve cover. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P1300 on a Toyota?▼
Repair costs on Toyota range from $15 to $700, depending on the specific model and root cause.
Which Toyota models have P1300 documented?▼
Au7o has documented P1300 on 1 Toyota model: Corolla.