DTC B2274 Acc Relay Control Circuit: Wiring Diagram
Push button start system wiring diagram. Refer to appropriate SYSTEM WIRING DIAGRAMS article.
- Engine type: FA
- Engine type: EJ
DIAGNOSTIC PROCEDURE
| Step | Check | Yes | No |
|---|---|---|---|
| 1 CHECK LAN SYSTEM. Inspect LAN system. < Ref. 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. < Ref. to RELAY AND 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 (Control Module) 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.
|
Is resistance 152.61 - 216.5 Ω? (20°C) | Go to step 7. | Go to step 6. |
| 6 CHECK RELAY. Perform inspection of ACC relay unit. < Ref. to ACCESSORY RELAY (PUSH BUTTON START) . > |
Is the relay OK? | Go to step 7. | Replace the relay. |
| 7 CHECK HARNESS. Using a tester, measure the resistance between keyless access CM (Control Module) connectors. Connector & terminal (B574) No. 4 - (B426) No. 1: (B426) No. 2 - Chassis ground: |
Is the resistance less than 1 Ω? | Go to step 8. | Repair or replace the open circuit of harness. |
8 CHECK KEYLESS ACCESS CM (Control Module).
|
Is the voltage 1 V or less → 9.5 - 16 V when OFF → ACC ON? | System is normal. It is possible that temporary poor contact occurs. | Replace the keyless access CM (Control Module). < Ref. to KEYLESS ACCESS CM (Control Module) . > |