DTC U3003:16 [BCM]
id0902f5933600
Description
Detection Condition
Possible Causes
System Wiring Diagram
am6zzw00007174
|
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 U3003:16 present?
|
Yes
|
Go to the next step.
|
No
|
DTC troubleshooting completed.
|
||
2
|
INSPECT PCM DTC
• Perform the PCM DTC inspection using the M-MDS.
• Are any DTCs present?
|
Yes
|
Go to the applicable DTC inspection.
(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.
• Is there any malfunction?
|
Yes
|
Recharge or replace the battery, then go to Step 7.
|
No
|
Go to the next step.
|
||
4
|
INSPECT GENERATOR
• Inspect the generator.
• Is there any malfunction?
|
Yes
|
Replace the generator, then go to Step 7.
|
No
|
Go to the next step.
|
||
5
|
INSPECT BCM CONNECTOR CONDITION
• Switch the ignition to off.
• Disconnect the negative battery cable.
• Disconnect the BCM connector.
• Inspect the connector and terminals (corrosion, damage, pin disconnection).
• Is there any malfunction?
|
Yes
|
Repair or replace the connector or terminals, then go to Step 7.
|
No
|
Go to the next step.
|
||
6
|
INSPECT BCM POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT OR SHORT TO GROUND
• BCM connector is disconnected.
• Reconnect the negative battery cable.
• Measure the voltage at the BCM terminal 2J (wiring harness-side).
• Is the voltage B+?
|
Yes
|
Go to the next step.
|
No
|
Inspect the HAZARD 10 A fuse.
• If the fuse is melt:
• If the fuse is deterioration:
• If the fuse is normal:
Go to the next step.
|
||
7
|
VERIFY TROUBLESHOOTING COMPLETED
• Make sure to reconnect all disconnected connectors.
• Reconnect the negative battery cable.
• 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 U3003:16 present?
|
Yes
|
Repeat the inspection from Step 1.
• If the malfunction recurs, replace the BCM.
Go to the next step.
|
No
|
Go to the next step.
|
||
8
|
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.
|