ABS
Fig. 25 Code B1605: Electronic Control Module Fault:
Fault symptom
ABS warning lamp on, no ABS function.
Condition
Fault registered ai an internal program fault.
Diagnostic procedure
1 Electronic control module ground and 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 pin 15 and B+ =
- between pin 18 and B+ = <0.5V
- between pin 16 and B- = <0.1V
- between pin 19 and B- =<0.1V
Are the voltage ratings OK?
YES - Continue continue point 2.
NO - Check and rectify the wiring including the connector and grounding points.
2 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 -
NO - The diagnostic procedure performed is right or the fault is of intermittent character.