Cylinder 3-Injector Circuit Overcurrent High Side

Test 1 - 2:

Test 3 - 6:

Test 7 - 10:

Test 11:

SYMPTOM
P0203-CYLINDER 3-INJECTOR CIRCUIT OVERCURRENT HIGH SIDE

TEST NOTE
This symptom is diagnosed using the test P0201-CYLINDER 1-INJECTOR CIRCUIT CURRENT DECREASE.

WHEN MONITORED
With the engine running.

SET CONDITION
The ECM detects excessive current on the common driver circuit.

POSSIBLE CAUSES
- Checking the engine control relay system
- Engine control module
- Intermittent condition
- Fuel injector control circuit shorted to voltage
- Common driver circuit shorted to voltage
- Fuel injector control circuit shorted to ground
- Common driver circuit shorted to ground
- Fuel injector circuits shorted together
- Fuel injector control circuit open
- Common driver circuit open
- Fuel injector