Gear selector
|  | Terminal connection diagram
|  | Test steps
|  | Notice: variable signal
Terminal connection diagram Test steps If the lighting of the gear selector switch is defective, replace the defective light bulb. Open plug connection S2. Depending on what fault is displayed by the diagnosis, apply button (switch) according to the following table and measure resistance between contacts. If all measurements yield R = RTarget, continue with point 4.
Button, switch | S2: Measure between +TL and: | RTarget [Ω]: Pushbutton depressed/not depressed
1 | 21 (-UB) | approx. 580
2 | 21 (-UB) | approx. 580
3 | 21 (-UB) | approx. 580
D | 21 (-UB) | approx. 580
N | 21 (-UB) | approx. 580
R | 21 (-UB) | approx. 580
Rev. inh. |  | approx. 580
Button, switch | S2: Measure betw. contact 29 (TS) and: | RTarget [Ω]: Pushbutton depressed (N depressed) [N not depressed]
1 | 10 (/N) | 0 (∞)
2 | 10 (/N) | 0 (∞)
3 | 10 (/N) | 0 (∞)
D | 10 (/N) | 0 (∞)
N | 10 (/N) | ∞ [0]
R | 10 (/N) | 0 (∞)
Rev. inh. |  |
Button, switch | S2: Measure betw. contact 29 (TS) and: | RTarget [Ω]: Pushbutton depressed (not depressed)
1 | 27 (S1) | 0 (∞)
2 | 45 (S2) | 0 (∞)
3 | 9 (S3) | 0 (∞)
D | 28 (+V) | 0 (∞)
N |  |
R | 46 (+R) | 0 (∞)
Rev. inh. | 30 (RS) | 0 (∞)*
*= Resistance value with R pushbutton depressed simultaneously Open S7. Depending on what fault is displayed by the diagnosis, apply pushbutton (switch) according to the following table and measure resistance between contacts.
Button, switch | Measure between +TL and: | RTarget [Ω]: Pushbutton depressed/not depressed
1 | 10 (-UB) | approx. 580
2 | 10 (-UB) | approx. 580
3 | 10 (-UB) | approx. 580
D | 10 (-UB) | approx. 580
N | 10 (-UB) | approx. 580
R | 10 (-UB) | approx. 580
Rev. inh. |  |
Button, switch | Measure betw. contact 29 (TS) and: | RTarget [Ω]: Pushbutton depressed (N depressed) [N not depressed]
1 | 11 (SSP) | ∞ (0)
2 | 11 (SSP) | ∞ (0)
3 | 11 (SSP) | ∞ (0)
D | 11 (SSP) | ∞ (0)
N | 11 (SSP) | 0 [∞]
R | 11 (SSP) | 0 (∞)
Rev. inh. |  |
Button, switch | Measure betw. contact 7 (TS) and: | RTarget [Ω]: Pushbutton depressed (N not depressed)
1 | 9 (/N) | 0 (∞)
2 | 9 (/N) | 0 (∞)
3 | 9 (/N) | 0 (∞)
D | 9 (/N) | 0 (∞)
N | 9 (/N) | ∞ [0]
R | 9 (/N) | 0 (∞)
Rev. inh. |  |
Button, switch | Measure betw. contact 7 (TS) and: | RTarget [Ω]: Pushbutton depressed (not depressed)
1 | 1 (S1) | 0 (∞)
2 | 2 (S2) | 0 (∞)
3 | 3 (S3) | 0 (∞)
D | 4 (+V) | 0 (∞)
N |  |
R | 5 (+R) | 0 (∞)
Rev. inh. | 6 (RS) | 0 (∞)*
Check resistance to ground: S2, contacts 9,10, 21, 27, 28, 29, 30,33, 45, 46. RTarget = ∞ Ω. Notice: variable signal The assignment to a connection of the transmission control unit is accomplished in the data record and is vehicle-specific.
© by Voith Turbo GmbH & Co. KG send remarks to markus.zwickel@voith.com (documentation department)