Suzuki Baleno Manual page 1901

1. DLC
2. Scan tool
ENGINE AND EMISSION CONTROL SYSTEM (J18 ENGINE WITH WU TWC) 6E4-15
5) Turn ignition switch OFF and connect MAF sensor coupler to
MAF sensor.
6) Turn ignition switch ON and check voltage at "C20-24" terminal.
"Standard" voltage: 0.5 – 1.0 V
1. ECM
7) Start engine and check that voltage is lower than 5 V and it rises
as engine speed increases.
(Reference data: 1.3 – 1.8 V at specified idle speed)
If check result is not as specified above, cause may lie in wire
harness, coupler connection, MAF sensor or ECM.
INTAKE AIR TEMPERATURE (IAT SENSOR)
REMOVAL/INSPECTION/INSTALLATION
Refer to Section 6E3.
THROTTLE POSITION SENSOR (TP SENSOR)
INSPECTION
1) Connect SUZUKI scan tool to DLC with ignition switch OFF.
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 follow le-
ver).
3) Check "THROT POS SENSOR" value displayed on scan tool
under the following each condition.
When throttle is fully close : 0.50"0.15 V
When throttle is fully open : 4.0 "0.5 V
If measured value is out of above specified range, adjust instal-
lation angle of TP sensor referring to "Adjustment" in this sec-
tion.
Also check that "THROT POS SENSOR" value varies accord-
ing to throttle valve opening linearly. If not, it is possible that TP
sensor has failed. Replace.