Sidekick JS 2D Soft Top 2WD L4-1.6L (1997)
Ignition Timing Connector: Description and Operation
The test switch terminal is included in the engine-room monitor coupler. When this terminal is grounded, ECM sets the ignition timing to the
initial ignition timing.
When both test switch terminal and diagnosis switch terminal are grounded, ECM outputs A/F duty through the duty output terminal.