[13C] MULTIPORT FUEL INJECTION (MPI) <4G69> - - TROUBLESHOOTING - INSPECTION PROCEDURE FOR DIAGNOSIS CODES - Code No. P0513: Immobilizer Malfunction <Vehicles for GCC, Australia and South africa> | PRINT PAGE / INDEX / PRIOR / NEXT

Code No. P0513: Immobilizer Malfunction <Vehicles for GCC, Australia and South africa>
OPERATION The signals are sent and received between engine-A/T-ECU (terminal No. 65) and immobilizer-ECU (terminal No. 7).
FUNCTION Engine-A/T-ECU sends or receives the control signals to or from immobilizer-ECU to certify the ignition key. NOTE: If the registered ignition keys are close each other when starting the engine, radio interference may cause this code to be displayed. This code may be displayed when registering the key encrypted code.
TROUBLE JUDGMENT Check Condition Ignition switch is in "ON" position. Judgment Criterion When the communication error between engine-A/T-ECU and the immobilizer-ECU continues for 2 seconds or more.
PROBABLE CAUSE Open/short circuit in immobilizer system circuit or loose connector contact Failed immobilizer-ECU Failed engine-A/T-ECU
| DIAGNOSIS PROCEDURE
| STEP 1. Connector check: C-304 immobilizer-ECU connector and C-136 engine-A/T-ECU connector.
| Q: Is the check result normal? YES: Go to Step 2 . NO: Repair.
| STEP 2. Check harness between C-304 (terminal No. 3) immobilizer-ECU connector and C-136 (terminal No. 65) engine-A/T-ECU connector.
| NOTE: Before checking harness, check intermediate connector C-104, and repair if necessary. Check output line for open/short circuit and damage. Q: Is the check result normal? YES: Go to Step 3 . NO: Repair.
| STEP 3. Check the trouble symptoms. Q: Is the check result normal? YES: Go to Step 4 . NO: Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points ).
| STEP 4. After replacing the immobilizer-ECU, re-check the trouble symptoms. Q: Is the check result normal? YES: Replace engine-A/T-ECU. NO: Check end.

[13C] MULTIPORT FUEL INJECTION (MPI) <4G69> - - TROUBLESHOOTING - INSPECTION PROCEDURE FOR DIAGNOSIS CODES - Code No. P0513: Immobilizer Malfunction <Vehicles for GCC, Australia and South africa> | PRINT PAGE / INDEX / PRIOR / NEXT

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