DTC P0202:00 [MZI-3.7]

id0102d2148000

DTC P0202:00 | Injector circuit/open—cylinder No.2
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DETECTION CONDITION | • The CCM monitors the operation of the fuel injector drivers in the PCM. The test fails if the fuel injector circuitry is inoperative.
POSSIBLE CAUSE | • Fuel injector No.2 connector or terminal malfunction • Open circuit between fuel pump relay and fuel injector No.2 terminal B • PCM connector or terminal malfunction • Open circuit between fuel injector No.2 terminal A and PCM terminal 2BC • Short to ground between fuel injector No.2 terminal A and PCM terminal 2BC • Short to power supply between fuel injector No.2 terminal A and PCM terminal 2BC • Fuel injector No.2 malfunction • PCM malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | VERIFY FREEZE FRAME DATA HAS BEEN RECORDED • Has FREEZE FRAME DATA been recorded? | Yes | Go to the next step.
No | Record FREEZE FRAME DATA on the repair order, then go to the next step.
2 | VERIFY RELATED SERVICE INFORMATION AVAILABILITY • Verify related Service Information availability. • Is any related Service Information available? | Yes | Perform repair or diagnosis according to the available Service Information. • If the vehicle is not repaired, go to the next step.
No | Go to the next step.
3 | INSPECT FUEL INJECTOR NO.2 CONNECTOR FOR POOR CONNECTION • Turn the ignition switch off. • Disconnect the fuel injector No.2 connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Are there malfunction? | Yes | Repair or replace suspected part, then go to Step 10.
No | Go to the next step.
4 | INSPECT FUEL INJECTOR NO.2 POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT • Fuel injector No.2 and PCM connectors are disconnected. • Turn the ignition switch to the ON position (engine off). • Measure the voltage between fuel injector No.2 connector terminal B and body ground. • Is the voltage B+? | Yes | Go to the next step.
No | Repair or replace suspected part, then go to Step 10.
5 | INSPECT PCM CONNECTOR FOR POOR CONNECTION • Turn the ignition switch off. • Disconnect the PCM connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Is there malfunction? | Yes | Repair or replace suspected part, then go to Step 10.
No | Go to the next step.
6 | INSPECT FUEL INJECTOR NO.2 SIGNAL CIRCUIT FOR OPEN CIRCUIT • Fuel injector No.2 and PCM connectors are disconnected. • Turn the ignition switch off. • Inspect continuity between fuel injector No.2 terminal A (wiring harness-side) and PCM terminal 2BC (wiring harness-side). • Is there continuity? | Yes | Go to the next step.
No | Repair or replace suspected part, then go to Step 10.
7 | INSPECT FUEL INJECTOR NO.2 SIGNAL CIRCUIT FOR SHORT TO GROUND IN WIRING HARNESS • Fuel injector No.2 and PCM connectors are disconnected. • Measure the resistance between fuel injector No.2 connector terminal A (wiring harness-side) and body ground. • Is the resistance greater than 10 kilohms? | Yes | Go to the next step.
No | Repair or replace suspected part, then go to Step 10.
8 | INSPECT FUEL INJECTOR NO.2 SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY IN WIRING HARNESS • Fuel injector No.2 and PCM connectors are disconnected. • Turn the ignition switch to the ON position (engine off). • Measure the voltage between fuel injector No.2 terminal A (wiring harness-side) and body ground. • Is any voltage present? | Yes | Repair or replace suspected part, then go to Step 10.
No | Go to the next step.
9 | INSPECT FUEL INJECTOR NO.2 • Inspect the fuel injector No.2. (See FUEL INJECTOR INSPECTION [MZI-3.7].) • Is there any malfunction? | Yes | Replace the fuel injector No.2, then go to the next step.
No | Go to the next step.
10 | VERIFY TROUBLESHOOTING OF DTC P0202:00 HAS BEEN COMPLETED • Verify that all disconnected connectors reconnected. • Clear the DTC from the PCM memory using the M-MDS. (See AFTER REPAIR PROCEDURE [MZI-3.7].) • Start the engine. • Perform the KOEO or KOER self-test. (See KOEO/KOER SELF TEST [MZI-3.7].) • Is same DTC present? | Yes | Repeat the inspection from Step 1. • If the malfunction recurs, replace the PCM. (See PCM REMOVAL/INSTALLATION [MZI-3.7].) Go to the next step.
No | Go to the next step.
11 | VERIFY AFTER REPAIR PROCEDURE • Perform the “AFTER REPAIR PROCEDURE”. (See AFTER REPAIR PROCEDURE [MZI-3.7].) • Are any DTCs present? | Yes | Go to the applicable DTC inspection. (See DTC TABLE [MZI-3.7].)
No | Troubleshooting completed.