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Home >> Suzuki >> 2001 >> Swift GL, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Controls - On-Vehicle Adjustments >> Throttle Position (TP) Sensor >> Esteem (1.8L), Grand VITARA & XL-7)
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Esteem (1.8L), Grand VITARA & XL-7)

  1. Warm engine up to normal operating temperature. Make sure fast idle cam and cam follower have clearance between them. Turn ignition off. Disconnect TP sensor connector. Using an ohmmeter, check resistance between specified terminals of TP sensor connector. See THROTTLE POSITION (TP) SENSOR RESISTANCE  table. See Figure . If idle switch check is not within specification, go to next step.
    NOTE: If Tech 1 scan tool is available, the following adjustment can be made using scan tool instead of DVOM.
  2. Disconnect negative battery cable. Reconnect TP sensor connector. Loosen TP sensor mounting screws. Using a DVOM, check voltage at ECM terminal C20-25 (Esteem 1.8L) or C51-3-12 (Grand Vitara). Turn TP sensor fully counterclockwise and then turn it clockwise slowly to locate point where DVOM voltage reading is as specified. See THROTTLE POSITION (TP) SENSOR VOLTAGE  table. Holding TP sensor at that position, tighten screws snug. Repeat step  1 . If readings cannot be obtained as specified, replace TP sensor.
    THROTTLE POSITION (TP) SENSOR RESISTANCE

    Application Ohms
    Esteem & Swift
    Between Terminals No. 1 & 2 2500-6000
    Between Terminals No. 1 & 3
    At Idle 100
    At Wide Open Throttle 20,000
    Grand Vitara, Vitara & XL-7
    Between Terminals No. 1 & 3 4000-6000
    Between Terminals No. 1 & 2 (Vitara & XL-7)
    At Idle 20
    At Wide Open Throttle 6000
    Between Terminals No. 2 & 3 (Grand Vitara)
    At Idle 0
    At Wide Open Throttle 4600
    THROTTLE POSITION (TP) SENSOR VOLTAGE

    Application (1) Volts
    Esteem (1.6L) (2)
    At Idle .2-.1.0
    At Wide Open Throttle 2.8-4.8
    Esteem (1.8L) & Grand Vitara (2)
    At Idle .35-.65
    At Wide Open Throttle 3.5-4.5
    Vitara (1.6L & 2.0L) (2)
    At Idle .5-1.2
    At Wide Open Throttle 3.4-4.7
    XL-7 (2)
    At Idle .51-.91
    At Wide Open Throttle 3.7-4.4
    Swift (2)
    At Idle .1-1.0
    At Wide Open Throttle 2.8-4.8
    (1) Ignition on and engine off.
    (2) Measure voltage at ECM connector terminal No. C20-6 (Esteem 1.6L), C20-25 (Esteem 1.8L), C51-3-9, (Vitara 1.6L & 2.0L), C51-3-12 (Grand Vitara), C51-3-9 (XL-7) and C22-6 (Swift). See PIN VOLTAGE/CIRCUIT RESISTANCE CHARTS article.
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