Throttle Body: Inspection

WARNING: This page is about a different car, the 2008 Lexus LS 600hL. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT THROTTLE BODY ASSEMBLY

Check that the throttle valve opens and closes smoothly.
Check that the there is no sludge accumulating around the throttle body

Measure the resistance according to the value (s) in the table below

Standard resistance

STANDARD RESISTANCE

Tester Connection	Condition	Specified Condition
1 (M-) - 2 (M+)	20°C (68°F)	0.3 to 100 Ω
3 (E2) - 5 (VC)	20°C (68°F)	2.0 to 4.0 kΩ

Fig 1: Identifying Throttle Body Connector Terminal

If the result is not as specified, replace the throttle body assembly.