ABS-433

P. ABS-433 Battery voltage

PA. DTC information






Condition

If the control module registers that the battery voltage exceeds approx. 19 V for approx. 0.5 ms (exact voltage level depends on operating conditions) to control module connections #23 or #25, DTC ABS-433 is posted.

Substitute value

- ABS/TRACS is disabled.
- EBD is disabled.

Possible source

- The voltage of the battery charger/starting device connected is too high.
- The charging system is overcharging.

Fault symptom(s)

- If the ABS/EBD systems are disabled, there is a risk of the wheels (especially the rear wheels) locking when braking.
- In cars with TRACS, the anti-wheelslip system cuts out.

Fault-tracing begins with PB. Other DTCs, status notifications and status checks.

PB. Other DTCs, status notifications and status checks

[PB1]

Other DTCs








- Note other DTCs

Select one of the above alternatives to continue

Alternative 1: PB2
Alternative 2: PB3

[PB2]

Status notification






Select one of the following alternatives to continue

Alternative 1: Fault-trace as per PC. Battery voltage too high. Permanent fault.
Alternative 2: Fault-trace as per PD. Battery voltage is too high. Intermittent fault.

[PB3]

Status check






- Engine on ticking-over

Connect a voltmeter between the battery plus and minus terminals
The voltmeter should indicate 12-15V when the battery is charging

If reading is OK: Fault-trace as per PD. Battery voltage is too high. Intermittent fault.
If reading is incorrect: Fault-trace as per PC. Battery voltage too high. Permanent fault.

PC. Battery voltage too high. Permanent fault

[PC1]

Check the connected battery charger and starter unit

Hint: It is important that the correct voltage is available when the battery charger or starter unit is connected to the battery. Charging with a voltage that is too great can trigger a DTC.

Check that the battery charger/starter unit are connected and the correct voltage is available.
Is the correct voltage available ?

Yes: PC2
No: PC3

[PC2]

Check the wiring system

Check the wiring system to ensure that the voltage charge is not too high.

Then continue with: PC4

[PC3]

Fault cause and action to be taken

The DTC has been caused by incorrect voltage supply. Set the correct voltage for the battery charger/starter unit.

Then continue with: PC4

[PC4]

Verification






Hint: After repair it is necessary to check that the fault has been rectified.


- Ignition off.
- Reconnect the connections, components etc.
- Engine ticking-over.

Connect a voltmeter between the battery plus and minus terminals.
The voltmeter should indicate 15V when the battery is charging.

If reading is OK: Fault corrected
If reading is incorrect: PC5

[PC5]

Fault-tracing information

The verification result shows that the fault persists.
Do you want to exit fault-tracing?

Yes: Fault not corrected
No: PC1

PD. Battery voltage is too high. Intermittent fault

[PD1]

Check the connected battery charger/starter unit

Hint: The DTC can be triggered if the battery charger or starter unit have been connected with an incorrect voltage.

Have the battery charger/starter unit been connected to the battery with an incorrect voltage?

Yes: PD2
No: PD3

[PD2]

Fault cause

The fault has been caused by incorrect voltage.

Then continue with: Fault corrected

[PD3]

Replacing a component

Test with a new charge regulator.

Then continue with: PD4

[PD4]

Fault-tracing information

For intermittent faults fault-tracing is not followed by a verification because the fault is not present at this moment.
Do you want to repeat fault-tracing?

Yes: PD1
No: Operation done