AD42.45-P-3001A | Electronic stability program (ESP) and SPS diagnosis operational check | 12.8.97 |
MODEL 129 with ENGINE 104, 119, 120 with CODE (472a) electronic stability program (ESP)
MODEL 140 with CODE (472a) electronic stability program (ESP)
MODEL 210 with ENGINE 119 with CODE (472a) electronic stability program (ESP)
Electronic stability program (ESP) and SPS diagnosis, basic knowledge | |||
Function check | |||
Test step/Scope of test | Operation/Requirement | Specified value | Possible cause/Remedy |
1 Brake moment control circuit | No test wiring harness should be connected during the function test Raise vehicle at the rear so that both rear wheels are free to move. Secure vehicle. Engine: Idling Selector lever in position "D" Use accelerator pedal to apply full throttle. If ASR control is not used: Return accelerator pedal to closed throttle position |
The rear wheels are braked noticeably and the high pressure/return pump is audible at the same time. The engine speed is controlled to approx. 1000 rpm. The ESP warning lamp in the speedometer flashes. |
Motor electronics (ME-SFI) Engine DM |
2 ESP shut-off with ESP OFF switch | Engine: Idling Selector lever in position "N" Operate ESP OFF switch Selector lever in position "D" Operate accelerator pedal slowly |
The ESP warning lamp in the speedometer is permanently illuminated. Engine speed is not reduced and the rear wheels are not braked. The ESP warning lamp in the speedometer flashes. |