DTC U3003:17 [BCM]

id0902f5310200

Description

• BCM power supply voltage malfunction

Detection Condition

• BCM power supply voltage is high.

Possible Causes

• Battery malfunction

• Generator malfunction

• BCM malfunction

Diagnostic Procedure

Step

Inspection

Action

1

PERFORM DTC INSPECTION

•  Clear the DTCs using the M-MDS.
(See CLEARING DTC [BCM].)

•  Perform the BCM DTC inspection using the M-MDS.
(See DTC INSPECTION [BCM].)

•  Is the DTC U3003:17 present?

Yes

Go to the next step.

No

DTC troubleshooting completed.

2

INSPECT PCM DTC

•  Perform the PCM DTC inspection using the M-MDS.
(See ON-BOARD DIAGNOSTIC TEST [MZR 1.8, MZR 2.0, MZR 2.5].)

(See ON-BOARD DIAGNOSTIC TEST [MZR 2.0 DISI].)

(See ON-BOARD DIAGNOSTIC TEST [MZR-CD 2.2].)

•  Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [MZR 1.8, MZR 2.0, MZR 2.5].)

(See DTC TABLE [MZR 2.0 DISI].)

(See DTC TABLE [MZR-CD 2.2].)

No

Go to the next step.

3

INSPECT BATTERY

•  Inspect the battery.
(See BATTERY INSPECTION [MZR 1.8, MZR 2.0, MZR 2.5].)

(See BATTERY INSPECTION [MZR 2.0 DISI].)

(See BATTERY INSPECTION [MZR-CD 2.2].)

•  Is there any malfunction?

Yes

Replace the battery, then go to Step 5.

(See BATTERY REMOVAL/INSTALLATION [MZR 1.8, MZR 2.0, MZR 2.5].)

(See BATTERY REMOVAL/INSTALLATION [MZR 2.0 DISI].)

(See BATTERY REMOVAL/INSTALLATION [MZR-CD 2.2].)

No

Go to the next step.

4

INSPECT GENERATOR

•  Inspect the generator.
(See GENERATOR INSPECTION [MZR 1.8, MZR 2.0, MZR 2.5].)

(See GENERATOR INSPECTION [MZR 2.0 DISI].)

(See GENERATOR INSPECTION [MZR-CD 2.2].)

•  Is there any malfunction?

Yes

Replace the generator, then go to the next step.

(See GENERATOR REMOVAL/INSTALLATION [MZR 1.8, MZR 2.0, MZR 2.5].)

(See GENERATOR REMOVAL/INSTALLATION [MZR 2.0 DISI].)

(See GENERATOR REMOVAL/INSTALLATION [MZR-CD 2.2].)

No

Go to the next step.

5

VERIFY TROUBLESHOOTING COMPLETED

•  Clear the DTCs using the M-MDS.
(See CLEARING DTC [BCM].)

•  Perform the BCM DTC inspection using the M-MDS.
(See DTC INSPECTION [BCM].)

•  Is the DTC U3003:17 present?

Yes

Repeat the inspection from Step 1.

•  If the malfunction recurs, replace the BCM.
(See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION.)

Go to the next step.

No

Go to the next step.

6

VERIFY THAT NO OTHER DTCs ARE PRESENT

•  Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [BCM].)

No

DTC troubleshooting completed.

Step	Inspection		Action
1	PERFORM DTC INSPECTION • Clear the DTCs using the M-MDS. (See CLEARING DTC [BCM].) • Perform the BCM DTC inspection using the M-MDS. (See DTC INSPECTION [BCM].) • Is the DTC U3003:17 present?	Yes	Go to the next step.
1		No	DTC troubleshooting completed.
2	INSPECT PCM DTC • Perform the PCM DTC inspection using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [MZR 1.8, MZR 2.0, MZR 2.5].) (See ON-BOARD DIAGNOSTIC TEST [MZR 2.0 DISI].) (See ON-BOARD DIAGNOSTIC TEST [MZR-CD 2.2].) • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [MZR 1.8, MZR 2.0, MZR 2.5].) (See DTC TABLE [MZR 2.0 DISI].) (See DTC TABLE [MZR-CD 2.2].)
2		No	Go to the next step.
3	INSPECT BATTERY • Inspect the battery. (See BATTERY INSPECTION [MZR 1.8, MZR 2.0, MZR 2.5].) (See BATTERY INSPECTION [MZR 2.0 DISI].) (See BATTERY INSPECTION [MZR-CD 2.2].) • Is there any malfunction?	Yes	Replace the battery, then go to Step 5. (See BATTERY REMOVAL/INSTALLATION [MZR 1.8, MZR 2.0, MZR 2.5].) (See BATTERY REMOVAL/INSTALLATION [MZR 2.0 DISI].) (See BATTERY REMOVAL/INSTALLATION [MZR-CD 2.2].)
3		No	Go to the next step.
4	INSPECT GENERATOR • Inspect the generator. (See GENERATOR INSPECTION [MZR 1.8, MZR 2.0, MZR 2.5].) (See GENERATOR INSPECTION [MZR 2.0 DISI].) (See GENERATOR INSPECTION [MZR-CD 2.2].) • Is there any malfunction?	Yes	Replace the generator, then go to the next step. (See GENERATOR REMOVAL/INSTALLATION [MZR 1.8, MZR 2.0, MZR 2.5].) (See GENERATOR REMOVAL/INSTALLATION [MZR 2.0 DISI].) (See GENERATOR REMOVAL/INSTALLATION [MZR-CD 2.2].)
4		No	Go to the next step.
5	VERIFY TROUBLESHOOTING COMPLETED • Clear the DTCs using the M-MDS. (See CLEARING DTC [BCM].) • Perform the BCM DTC inspection using the M-MDS. (See DTC INSPECTION [BCM].) • Is the DTC U3003:17 present?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the BCM. (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION.) Go to the next step.
5		No	Go to the next step.
6	VERIFY THAT NO OTHER DTCs ARE PRESENT • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [BCM].)
6		No	DTC troubleshooting completed.