DTC P0201, P0202, P0203, P0204
DTC P0201: No. 1 Cylinder Injector Circuit Malfunction DTC P0202: No. 2 Cylinder Injector Circuit Malfunction DTC P0203: No. 3 Cylinder Injector Circuit Malfunction DTC P0204: No. 4 Cylinder Injector Circuit Malfunction
General Description
The injector supplies fuel to the engine and is controlled by the powertrain control module (PCM) ON/OFF command. The driver IC are built into the PCM, and it has failure diagnosis functions and transmit information to the CPU. If the PCM detects a malfunction for a specified time, the PCM detects a malfunction and stores a DTC.
Monitor Execution, Sequence, Duration, DTC Type, OBD Status
| Execution | Continuous |
| Sequence | None |
| Duration | 5 seconds or more (at idle) |
| DTC Type | One drive cycle, MIL on |
| OBD Status | PASSED/FAILED/NOT COMPLETED (STILL TESTING) |
Enable Conditions
| Condition | Minimum | Maximum |
|---|---|---|
| 12 volt battery voltage [BATTERY] | 10 V | - |
| State of the engine | Running | |
| No active DTCs set (prevents monitor from running) | P0335, P0339, P0365, P0369 | |
| Other | Other than during fuel cut-off operation | |
[ ]: HDS Parameter
Malfunction Threshold
The PCM detects a malfunction at least 30 times (counts once per engine cycle).
Possible Cause
NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
P0201
- No. 1 injector failure
- No. 1 injector INJ 1 line open
- No. 1 injector INJ 1 line short to ground
- No. 1 injector INJ 1 line short to power
- No. 1 injector power supply line open
P0202
- No. 2 injector failure
- No. 2 injector INJ 2 line open
- No. 2 injector INJ 2 line short to ground
- No. 2 injector INJ 2 line short to power
- No. 2 injector power supply line open
P0203
- No. 3 injector failure
- No. 3 injector INJ 3 line open
- No. 3 injector INJ 3 line short to ground
- No. 3 injector INJ 3 line short to power
- No. 3 injector power supply line open
P0204
- No. 4 injector failure
- No. 4 injector INJ 4 line open
- No. 4 injector INJ 4 line short to ground
- No. 4 injector INJ 4 line short to power
- No. 4 injector power supply line open
Common
- PCM internal circuit failure
Diagnosis Details
Conditions for setting the DTC
When a malfunction is detected, the MIL comes on and a Pending DTC, a Confirmed DTC, and the freeze data are stored in the PCM memory.
Conditions for clearing the DTC
The MIL is cleared if the malfunction does not return in three consecutive trips in which the diagnostic runs. The MIL, the Pending DTC, the Confirmed DTC, and the freeze data can be cleared with the scan tool Clear command or by disconnecting the 12 volt battery.