DTC U3003:16, U3003:17 [THEFT-DETERRENT SYSTEM]

id0902g7850900

DESCRIPTION | Theft-deterrent control module power supply circuit malfunction
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DETECTION CONDITION | • Theft-deterrent control module power supply voltage is other than 9—16 V.
POSSIBLE CAUSE | • Battery malfunction • Generator malfunction • BCM connector or terminals malfunction • Open circuit or short to ground in theft-deterrent control module power supply circuit ― Short to ground in wiring harness between BCM terminal 2A and battery positive terminal ― ROOM 15 A fuse malfunction ― MAIN 150 A fuse malfunction ― Open circuit in wiring harness between BCM terminal 2A and battery positive terminal • BCM malfunction • Theft-deterrent control module connector or terminals malfunction • Short to ground in wiring harness between theft-deterrent control module terminal W and BCM terminal 5H • Open circuit in wiring harness between theft-deterrent control module terminal W and BCM terminal 5H • Theft-deterrent control module malfunction

Diagnostic Procedure

Step | Inspection | Action
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1 | PERFORM PCM DTC INSPECTION • Perform the PCM DTC inspection using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [MZI-3.7].) • Are any DTCs present? | Yes | Go to the applicable DTC inspection. (See DTC TABLE [MZI-3.7].)
No | Go to the next step.
2 | INSPECT BATTERY • Inspect the battery. (See BATTERY INSPECTION [MZI-3.7].) • Is there any malfunction? | Yes | Recharge or replace the battery, then go to Step 10. (See BATTERY RECHARGING [MZI-3.7].) (See BATTERY REMOVAL/INSTALLATION [MZI-3.7].)
No | Go to the next step.
3 | INSPECT GENERATOR • Inspect the generator. (See GENERATOR INSPECTION [MZI-3.7].) • Is there any malfunction? | Yes | Replace the generator, then go to Step 10. (See GENERATOR REMOVAL/INSTALLATION [MZI-3.7].)
No | Go to the next step.
4 | INSPECT BCM CONNECTOR AND TERMINALS • Turn the ignition switch to the OFF position. • 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 10.
No | Go to the next step.
5 | INSPECT THEFT-DETERRENT CONTROL MODULE POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT AND SHORT TO GROUND • Verify that the BCM connector is disconnected. • Reconnect the negative battery cable. • Measure the voltage at the BCM terminal 2A (wiring harness-side). • Is the voltage B+? | Yes | Go to the next step.
No | Inspect the ROOM 15 A fuse and MAIN 150 A fuse. • If the fuse is melt: ― Repair or replace the wiring harness for a possible short to ground. ― Replace the fuse. • If the fuse is deterioration: ― Replace the fuse. • If the fuse is normal: ― Repair or replace the wiring harness for a possible open circuit. Go to Step 10.
6 | INSPECT BCM • Disconnect the negative battery cable. • Make sure to reconnect all disconnected connectors. • Reconnect the negative battery cable. • Measure the voltage at the following terminals (wiring harness-side): ― BCM terminal 2A ― BCM terminal 5H • Is the voltage normal? (See BODY CONTROL MODULE (BCM) INSPECTION.) | Yes | Go to the next step.
No | Replace the BCM, then go to Step 10. (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION.)
7 | INSPECT THEFT-DETERRENT CONTROL MODULE CONNECTOR AND TERMINALS • Disconnect the negative battery cable. • Disconnect the theft-deterrent control module 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 10.
No | Go to the next step.
8 | INSPECT THEFT-DETERRENT CONTROL MODULE POWER SUPPLY CIRCUIT FOR SHORT TO GROUND • Verify that the theft-deterrent control module connector is disconnected. • Inspect for continuity between the theft-deterrent control module terminal W (wiring harness-side) and body ground. • Is there continuity? | Yes | Repair or replace the wiring harness for a possible short to ground, then go to Step 10.
No | Go to the next step.
9 | INSPECT THEFT-DETERRENT CONTROL MODULE POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT • Verify that the theft-deterrent control module connector is disconnected. • Inspect for continuity between the theft-deterrent control module terminal W (wiring harness-side) and BCM terminal 5H (wiring harness-side). • Is there continuity? | Yes | Go to the next step.
No | Repair or replace the wiring harness for a possible short to ground, then go to the next step.
10 | VERIFY TROUBLESHOOTING COMPLETED • Make sure to reconnect all disconnected connectors. • Reconnect the negative battery cable. • Clear the DTC using the M-MDS. (See CLEARING DTC [THEFT-DETERRENT SYSTEM].) • Perform the theft-deterrent control module DTC inspection using the M-MDS. (See DTC INSPECTION [THEFT-DETERRENT SYSTEM].) • Is the same DTC present? | Yes | Repeat the inspection from Step 1. • If the malfunction recurs, replace the theft-deterrent control module. (See THEFT-DETERRENT CONTROL MODULE REMOVAL/INSTALLATION.) Go to the next step.
No | Go to the next step.
11 | VERIFY THAT NO OTHER DTCs ARE PRESENT • Are any DTCs present? | Yes | Go to the applicable DTC inspection. (See DTC TABLE [THEFT-DETERRENT SYSTEM].)
No | DTC troubleshooting completed.