DTC 14

Data Trouble Code No. 15 - Ignition No. 2 Signal Circuit

Detecting Condition

No Ignition Confirmation Signal 2 to Engine Control Module for 8 - 11 consecutive Ignition 2 signals.

Trouble Area

- Open or short in Ignition Confirmation 2 circuit from Igniter No. 2 to Engine Control Module
- Igniter No. 2
- Engine Control Module.

Malfunction Indicator Lamp

Normal Mode On
Test Mode N.A.

Data Trouble Code No. 14 - Ignition No. 1 Signal Circuit

Detecting Condition

No Ignition Confirmation Signal 1 to Engine Control Module for 8 - 11 consecutive Ignition 1 signals.

Trouble Area

- Open or short in Ignition Confirmation 1 circuit from Igniter No. 1 to Engine Control Module
- Igniter No. 1
- Engine Control Module.

Malfunction Indicator Lamp

Normal Mode On
Test Mode N.A.

Circuit Description
The engine control module determines the ignition timing, turns on Tr1 at a predetermined angle (°CA) before the desired ignition timing and outputs an ignition signal (IGT to the igniter.

Since the width of the IGT signal is constant, the dwell angle control circuit in the igniter determines the time the control circuit starts primary current flow to the ignition coil based on the engine rpm and ignition timing one revolution ago, that is, the time the Tr2 turns on.

When it reaches the ignition timing, the engine control module turns Tr1 off and outputs the IGT signal "0". This turns Tr2 off, interrupting the primary current flow and generating a high voltage in the secondary coil which causes the spark plug to spark. Also, by the counter electromotive force generated when the primary current is interrupted, the igniter sends an ignition confirmation signal (IGF) to the engine control module. The engine control module stops fuel injection as a fail safe function when the IGF signal is not input to the engine control module.

Codes 14 And 15 Wiring Diagram:

Wiring Diagram

Codes 14 And 15 Diagnostic Chart:

Diagnostic Chart

Codes 14 And 15 Inspection Procedure - Part 1:

Codes 14 And 15 Inspection Procedure - Part 2:

Codes 14 And 15 Inspection Procedure - Part 3:

Codes 14 And 15 Inspection Procedure - Part 4:

Inspection Procedure