Signal Too Low

WARNING: In cars with AWD, lift up the car so that all wheels are hanging free.

NOTE: For steps ZA1 - ZA5 and ZB1 - ZB6, which are referred to in the following information, Other Electrical Fault Tracing (ZA steps will be found under "Permanent Faults" and ZB steps will be found under "Intermittent Faults".)

IB1 Status Check:





- Gear selector in neutral.
- Lift up the front suspension so that both front wheels are hanging free.
- Ignition on.
- Go into scrolling values under engine management system.





- Spin the front wheel so that speed exceeds 2 km/h (1.2 mph) for at least 2 seconds while reading off the status of the vehicle speed. Is a greater speed than 0 km/h (0 mph) displayed?

Yes: IB4
No: IB2

IB2 Checking for a Short-Circuit to Ground:





- Check cable between the combined instrument panel # A7 and engine control module (ECM) # B18 for a short-circuit to ground according to ZA3.
- On cars with cruise control: Check cable between combined instrument panel # A7 and cruise control control module # 8S for a short-circuit to ground according to ZA3.
- On cars with radio: Check cable between combined instrument panel # A7 and radio # 7B for a short-circuit to ground according to ZA3.
- On cars with VGLA: Check cable between combined instrument panel # A7 and multiple relay 2/76 # B9 for a short-circuit to supply voltage according to ZA4.
- On cars with RTI: Check cable between the combined instrument panel # A7 and RTI control module # B3 for a short-circuit to supply voltage according to ZA4.
- On cars with accessories connected to # C: Check cable between combined instrument panel # C and connected accessory for a short-circuit to ground according to ZA3.
- Then continue with IB3.

IB3 Verification:





After carrying out the repair check that the fault has been remedied.

- Ignition off.
- Gear selector in neutral.
- Reconnect connectors, reinstall components.
- Lift up the front suspension so that both front wheels are hanging free.
- Ignition on.
- Go into scrolling values under engine management system.





- Spin the front wheel so that speed exceeds 2 km/h (1.2 mph) for at least 2 seconds while reading off the status of the vehicle speed. Is a greater speed than 0 km/h (0 mph) displayed?

Yes: Fault corrected
No: Fault not found

IB4 Faulty Signal, Intermittent Fault:





- Check cable between combined instrument panel # A7 and engine control module (ECM) # B18 for an intermittent short-circuit to ground according to ZB3.
- On cars with cruise control: Check cable between combined instrument panel # A7 and cruise control control module # 8S for an intermittent short-circuit to ground according to ZB3.
- On cars with radio: Check cable between combined instrument panel # A7 and radio # 7B for an intermittent short-circuit to ground according to ZB3.
- On cars with VGLA: Check cable between combined instrument panel # A7 and multiple relay 2/76 # B9 for a short-circuit to supply voltage according to ZA4.
- On cars with RTI: Check cable between the combined instrument panel # A7 and RTI control module # B3 for a short-circuit to supply voltage according to ZA4.
- On cars with accessories connected to # C: Check cable between combined instrument panel # C and connected accessories for an intermittent short-circuit to ground according to ZB3.