Circuit Description
This circuit is used to send ignition timing retard request signals from the ABS & TRAC ECU to the engine & ECT ECU in order to retard the engine ignition timing.
CODE 49 DIAGNOSTIC
| Code No. | Diagnosis | Trouble Area |
|---|---|---|
| 49 | Open or short in engine communication circuit. | Harness or connector between ABS & TRAC ECU and engine & ECT ECU. ABS & TRAC ECU. Engine & ECT ECU. |