[ Model - ECLIPSE CROSS / Year - 2018 ]
2018 / ECLIPSE CROSS / EC - Workshop Manual
13 -FUEL > 13A-DIRECT INJECTION AND MULTIPOINT FUEL INJECTION (DI AND MPI) > TROUBLESHOOTING > DIAGNOSIS CODE PROCEDURES > CODE NO. P2530 IGNITION SWITCH-IG1 CIRCUIT
Code No. P2530: Ignition Switch-IG1 Circuit
 
 
cautionWhen the ETACS-ECU of vehicles without KOS is replaced, the encrypted code of the ignition key needs to be registered to the ETACS-ECU. (If the encrypted code is not registered, the engine cannot be started. Register the encrypted code as described in GROUP 54A, Immobilizer System - How to Register Key ID .)
 
 
OPERATION
  • When the ignition switch is turned on, the ignition switch ON signal is input into the engine-ECU connector terminal IGN and also into the ETACS-ECU.
 
 
FUNCTION
  • The engine-ECU compares the ignition switch ON signal sent from the ignition switch <Vehicles without KOS> or KOS&OSS-ECU <Vehicles with KOS> with ignition switch information sent from ETACS-ECU. The engine-ECU checks for the abnormality.
 
 
TROUBLE JUDGEMENT
Check Condition
  • Ignition switch: "ON" → "LOCK" (OFF)
Judgement Criterion
  • While the ignition switch ON signal is input into the engine-ECU, the ignition switch information, sent from the ETACS-ECU via CAN, is turned to OFF from ON. This allows the CAN to be stopped.
FAIL-SAFE AND BACKUP FUNCTION
  • None
 
 
PROBABLE CAUSES
  • Short circuit in ignition switch-IG1 circuit or loose connector contact
  • Failed CAN
  • Failed ETACS-ECU
  • Failed engine-ECU
 
 
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-IIISE CAN bus diagnosis
  • Use M.U.T.-IIISE to perform CAN bus line diagnosis.
Is the check result normal?
Go to Step 2.
Repair CAN bus line (Refer to GROUP 54C - Troubleshooting - CAN Bus Diagnostics Table ).
 
STEP 2. M.U.T.-IIISE other system diagnosis code
  • Confirm whether the diagnosis code is set in the ETACS-ECU.
Is the diagnosis code set?
Perform troubleshooting of ETACS (Refer to GROUP 54A - ETACS - Diagnosis Code Chart ).
Go to Step 3.
 
STEP 3. Check of short circuit in IGN line between engine-ECU connector and ETACS-ECU connector.
Is the check result normal?
Go to Step 4.
Repair the connector(s) or wiring harness.
 
STEP 4. M.U.T.-IIISE diagnosis code
  • Reconfirmation of diagnosis code.
Is the diagnosis code set?
Go to Step 5.
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).
 
STEP 5. Replace the ETACS-ECU
  • After replacing the ETACS-ECU, reconfirm whether the diagnosis code is set.
Is the diagnosis code set?
Replace the engine-ECU.
Check end.