B2465
Fig. 28 Code B2465: Pump Motor Faulty (Part 1 Of 2):
Fig. 28 Code B2465: Pump Motor Faulty (Part 2 Of 2):
Fault symptom
ABS warning lamp on, no ABS function.
Condition
The pump motor is tested after the car has started and the wheels start to rotate (Vl6 km/h). Then observe It continually.
Diagnostic help
The pump motor can be rotated with the ISAT Scan Tool.
- Select "ACTIVATE"
- Select "PUMP MOTOR"
If the ABS electronic control module has no ground connection (connector pin 16) a diagnostic trouble code is registered.
Diagnostic procedure
1 Pump motor inspection
- Connect the ISAT Scan Tool. The ignition switch is in the ON position
- Activate the pump motor in accordance with Diagnostic help.
Listen if the motor comes on/off.
Does the pump motor work?
YES - Continue with point 3.
NO - inspect the 2 pole sensor connector for any open-circuit. If the conductors are correct continue with point 2.
2 Electronic control module ground end voltage supply check
- Disconnect the electronic control module connector.
The ignition switch is in the ON position. Take a voltage reading at the electronic control module sensor connector. Connect the voltmeter,
- between B+ and pin 15 =
- between B+ and pin 18 =
Are the voltage ratings OK?
YES - Continue with point 3.
NO - Check and rectify the wiring including the connector and grounding points.
3 Final inspection
- Erase the diagnostic trouble code.
- Carry out the driving cycle, drive the car with various load and engine speeds for 5 minutes.
- Read the diagnostic trouble code.
Is the diagnostic trouble code stored?
YES - Test Procedure Prior to Replacing ECM
NO - The diagnostic procedure performed is right or the fault is of intermittent character.