Diagnostic Procedure
DIAGNOSTIC PROCEDURE
| Step | Check | Yes | No |
|---|---|---|---|
| 1 CHECK LAN SYSTEM. Inspect LAN system. < Refer to PROCEDURE , Basic Diagnostic Procedure. > |
Is LAN system normal? | Go to step 2 . | Perform the inspection according to the diagnosis for LAN system. |
| 2 CHECK FUSE. Remove the fuse. |
Is the fuse OK? | Go to step 3 . | Replace the fuse. When the replaced fuse is blown immediately, check the power supply circuit for short-circuited. |
3 CHECK HARNESS.
|
Is the voltage 9.5 - 16 V? | Go to step 4 . | Check the power supply circuit. |
| 4 CHECK HARNESS. Using a tester, measure the resistance between the keyless access CM connector and chassis ground. Connector & terminal (B572) No. 11 - Chassis ground: |
Is the resistance less than 1 Ω? | Go to step 5 . | Repair or replace the open circuit of harness. |
| 5 CHECK HARNESS. Using a tester, measure the resistance between the keyless access CM connector and chassis ground. Connector & terminal (B572) No. 9 - Chassis ground: |
Is resistance 128 - 157 Ω? (20°C) | Go to step 6 . | Check IG relay 2. Go to step 7 . |
| 6 CHECK HARNESS. Using a tester, measure the resistance between the keyless access CM connector and chassis ground. Connector & terminal (i242) No. 6 - Chassis ground: |
Is resistance 128 - 157 Ω? (20°C) | Go to step 7 . | Check IG relay 1. Go to step 7 . |
| 7 CHECK RELAY. Perform unit inspection of IG relay 1 and IG relay 2. < Refer to CHECK RELAY , INSPECTION, Relay and Fuse. > |
Is the relay OK? | Go to step 8 . | Replace the relay. < Refer to REMOVAL , IG Relay 1 (Push Button Start). > < Refer to REMOVAL , IG Relay 2 (Push Button Start). > |
8 CHECK KEYLESS ACCESS CM.
|
Is the voltage 1 V or less → 9.5 - 16 V when ACC → IGN ON? | System is normal. It is possible that temporary poor contact occurs. | Replace the keyless access CM. < Refer to REMOVAL , Keyless Access CM. > |