DTC P2504:00 [L3 Turbo]

DTC P2504:00 [L3 Turbo]SM2444138

DTC P2504:00 [L3 Turbo]

id0102b7709700

DTC P2504:00	Battery overcharge
DETECTION CONDITION	• The PCM determines that the generator output voltage is above 18.5 V or the battery voltage is above 16.0 V for 5 s while the engine is running. Diagnostic support note • This is a continuous monitor (other). • The MIL does not illuminate. • FREEZE FRAME DATA (Mode 2)/Snapshot data is not available. • DTCs are stored in the PCM memory.
POSSIBLE CAUSE	• Generator connector or terminals malfunction • PCM connector or terminals malfunction • Short to power supply in wiring harness between generator terminal D and PCM terminal 1AW • Generator malfunction ― Short to power supply in field coil control circuit at generator • PCM malfunction

Diagnostic procedure

STEP	INSPECTION		ACTION
1	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.
1		No	Go to the next step.
2	INSPECT GENERATOR CONNECTOR CONDITION • Turn the ignition switch off. • Disconnect the generator connector. • Inspect for poor connection (such as damaged/pulled-out pins, and corrosion). • Is there any malfunction?	Yes	Repair or replace the connector and/or terminals, then go to Step 7.
2		No	Go to the next step.
3	CLASSIFY GENERATOR MALFUNCTION OR OTHER MALFUNCTION • Generator connector is disconnected. • Turn the ignition switch to the ON position (engine off). • Measure the voltage at the generator terminal D (wiring harness-side). • Is the voltage B+?	Yes	Go to the next step.
3		No	There is a malfunction at the generator. • Go to Step 6.
4	INSPECT PCM CONNECTOR CONDITION • Turn the ignition switch off. • Disconnect the PCM connector. • Inspect for poor connection (such as damaged/pulled-out pins, and corrosion). • Is there any malfunction?	Yes	Repair or replace the connector and/or terminals, then go to Step 7.
4		No	Go to the next step.
5	INSPECT GENERATOR CONTROL CIRCUIT FOR SHORT TO POWER SUPPLY • Generator and PCM connectors are disconnected. • Turn the ignition switch to the ON position (engine off). • Measure the voltage at the generator terminal D (wiring harness-side). • Is there any voltage?	Yes	Repair or replace the wiring harness for a possible short to power supply, then go to Step 7.
5		No	Go to Step 7.
6	INSPECT GENERATOR • Inspect the generator. (See GENERATOR INSPECTION [L3 Turbo].) • Is there any malfunction?	Yes	Replace the generator, then go to the next step. (See GENERATOR REMOVAL/INSTALLATION [L3 Turbo].)
6		No	Go to the next step.
7	VERIFY DTC TROUBLESHOOTING COMPLETED • Make sure to reconnect all disconnected connectors. • Clear the DTC from the PCM memory using the M-MDS. (See AFTER REPAIR PROCEDURE [L3 Turbo].) • Start the engine. • Perform the KOER self test. (See KOEO/KOER SELF TEST [L3 Turbo].) • Is the same DTC present?	Yes	Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [L3 Turbo].)
7		No	Go to the next step.
8	VERIFY AFTER REPAIR PROCEDURE • Perform the “AFTER REPAIR PROCEDURE”. (See AFTER REPAIR PROCEDURE [L3 Turbo].) • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [L3 Turbo].)
8		No	DTC troubleshooting completed.