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G532451t23 : CHECK THE STEERING WHEEL SPEED CONTROL RESUME 1. Measure the resistance between the ECM connector:
(Petrol) EC300, pin 35 (YG) and EC300, pin 30 (YR).
(Diesel) EC66, pin B4 (YG) and EC66, pin C4 (YR). 2. Operate the RESUME switch. Does the resistance switch between 4310 ohms and 2110 ohms when the switch is operated? -> Yes GO to Pinpoint Test G532451t24.
-> No INSTALL a new speed control switch assembly. Speed Control Switch (19.75.25) TEST the system for normal operation. G532451t24 : CHECK THE STEERING WHEEL SPEED CONTROL SET+ SWITCH 1. Measure the resistance between the ECM connector:
(Petrol) EC300, pin 35 (YG) and EC300, pin 30 (YR).
(Diesel) EC66, pin B4 (YG) and EC66, pin C4 (YR). 2. Operate the SET+ switch. Does the resistance switch between 4310 ohms and 1110 ohms when the switch is operated? -> Yes GO to Pinpoint Test G532451t25.
-> No INSTALL a new speed control switch assembly. Speed Control Switch (19.75.25) TEST the system for normal operation. G532451t25 : CHECK THE STEERING WHEEL SPEED CONTROL HEADWAY- 1. Measure the resistance between the ECM connector:
(Petrol) EC300, pin 35 (YG) and EC300, pin 30 (YR).
(Diesel) EC66, pin B4 (YG) and EC66, pin C4 (YR). 2. Operate the HEADWAY- switch. Does the resistance switch between 4310 ohms and 600 ohms when the switch is operated? |