Without Scan Tool

Inspection (Not using SUZUKI scan tool)
i. Remove ECM (1) referring to "Engine Control Module (ECM) Removal and Installation".
ii. Warm up engine and stop it when its temperature has reached normal operating temperature (Check to make sure that they have some clearance between fast idle cam and cam follower lever.).
iii. Using voltmeter, check voltage at "C20-25" terminal under the following each condition.

If measured voltage is out of above specified range, adjust installation angle of TP sensor referring to "Throttle Position (TP) Sensor Adjustment".

Also check that voltage varies according to throttle valve opening linearly. If not, it is possible that TP sensor has failed. Replace.

Voltage at "C20-25" terminal of ECM and ground
When throttle is fully close: 0.50 ± 0.15 V
When throttle is fully open: 4.0 ± 0.5 V

iv. Upon completion of checking, install ECM.