AD42.45-P-6001-21B | ESP and SPS test of electrical system ESP hydraulic unit | Solenoid valves (A7/3y6-y13) |
| Scope of test | Measuring instrument/ | Operation/Requirement | Specified value | Possible cause/Remedy | ||
1.0 | ESP hydraulic unit (A7/3) Solenoid valves (A7/3y6–y13) | | Raise vehicle Actuate all solenoid valves one after the other: and brake operated and brake operated |
Wheel unbraked Wheel braked | Cables Depending on solenoid valve actuated: 1.1 to 1.8 | ||
1.1 | Left front axle solenoid valve (hold) (A7/3y6) Internal resistance |
80 (2.46) | N47–5 |
73 (2.39) | Ignition: OFF Disconnect ESP control module (N47-5) |
5.4-12.6 Ω | Cables ESP hydraulic unit (A7/3) |
1.2 | Left front axle solenoid valve (release) (A7/3y7) Internal resistance |
80 (2.46) | N47–5 |
72 (2.38) | Ignition: OFF Disconnect ESP control module (N47-5) |
2.8-6.6Ω | Cables ESP hydraulic unit (A7/3) |
1.3 | Right front axle solenoid valve (hold) (A7/3y8) Internal resistance |
80 (2.46) | N47–5 |
74 (2.40) | Ignition: OFF Disconnect ESP control module (N47-5) |
5.4-12.6 Ω | Cables ESP hydraulic unit (A7/3) |
1.4 | Right front axle solenoid valve (release) (A7/3y9) Internal resistance |
80 (2.46) | N47–5 |
71 (2.37) | Ignition: OFF Disconnect ESP control module (N47-5) |
2.8-6.6 Ω | Cables ESP hydraulic unit (A7/3) |
1.5 | Left rear axle solenoid valve (hold) (A7/3y10) Internal resistance |
80 (2.46) | N47-5 |
69 (2.35) | Ignition: OFF Disconnect ESP control module (N47-5) |
5.4-12.6 Ω | Cables ESP hydraulic unit (A7/3) |
1.6 | Left rear axle solenoid valve (release) (A7/3y11) Internal resistance |
80 (2.46) |
N47-5 |
70 (2.36) | Ignition: OFF Disconnect ESP control module (N47-5) |
2.8-6.6 Ω | Cables ESP hydraulic unit (A7/3) |
1.7 | Right rear axle solenoid valve (hold) (A7/3y12) Internal resistance |
80 (2.46) |
N47-5 |
64 (2.30) | Ignition: OFF Disconnect ESP control module (N47-5) |
5.4-12.6 Ω | Cables ESP hydraulic unit (A7/3) |
1.8 | Right rear axle solenoid valve (release) (A7/3y13) Internal resistance |
80 (2.46) |
N47-5 |
65 (2.31) | Ignition: OFF Disconnect ESP control module (N47-5) |
2.8-6.6 Ω | Cables ESP hydraulic unit (A7/3) |