Esteem GLX Wagon L4-1.8L (1999)
Throttle Position Sensor: Testing and Inspection
Without Scan Tool
Inspection [Not using SUZUKI scan tool]
1. Remove ECM referring to Section 6E2.
2. 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.).
3. Using voltmeter, check voltage at "C20-25" terminal under the following each condition.
When throttle is fully close : 0.50 ± 0.15 V
When throttle is fully open : 4.0 ± 10.5 V
If measured voltage is out of above specified range, adjust installation angle of TP sensor referring to "Adjustment".
Also check that voltage varies according to throttle valve opening linearly. If not, it is possible that TP sensor has failed. Replace.
4. Upon completion of checking, install ECM.
