| Circuit Diagram |

Signal WaveformThe three waveforms below are taken from the #1 and #4 injectors. The top waveform is from the high side (feed side) of the #1 and #4 injectors, while the middle waveform is from the low side (ground side) of the #1 injector and the bottom waveform is from the low side of the #4 injector.
Inspection1.Turn the ignition switch OFF.2.Disconnect the injector connector.3.Measure resistance between the injector terminals 1 and 2.4.Check that the resistance is within the specification.
Removal1.Disconnect the negative (-) battery terminal.2.Remove the steering wheel assembly.(Refer to Steering System -"Steering Wheel")3.Remove the steering back cover (A).4.Remove the steering remote control connector (A).5.Remove the steering remote control (A), after loosening the screws.
Trouble Symptom ChartsTrouble Symptom 1Trouble Symptom 2 Trouble symptom Probable cause Remedy The set vehicle speed varies greatly upward or downward"Surging" (repeated alternating acceleration and deceleration) occurs after settingMalfunction of the vehicle speed se