ABS-143

Fault in circuit. Permanent fault

Connecting breakout box and checking ground terminals
Connecting the breakout box
Then continue with:

FAULT FOUND - Checking signal cable resistance

FAULT-TRACING FAILED - Checking signal cable resistance

No Fault Found - Checking signal cable resistance

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Checking signal cable resistance

- Ignition off.
- Control module disconnected.
- Expose combined instrument panel.
- Disconnect combined instrument panel connector A.
Connect an ohmmeter between #6 on the breakout box and combined instrument panel connector A terminal 3.

The ohmmeter should read approximately 0 ohms.

OK - Checking signal cable resistance to ground

Not OK - Checking for an open-circuit in the cable

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Checking for an open-circuit in the cable
Check cable between combined instrument panel connector A terminal 3 and control module #6 for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.

Select "Continue" when the fault has been repaired.

Continue - Verification

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Checking signal cable resistance to ground

- Ignition off.
- Combined instrument panel connector A disconnected.
- Control module disconnected.
Connect an ohmmeter between #6 and #8 on the breakout box.

The ohmmeter should read infinite resistance.

OK - Checking short-circuit to supply voltage in signal cable

Not OK - Checking for a short-circuit

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Checking for a short-circuit
Check cable between combined instrument panel connector A terminal 3 and control module #6 for a short-circuit to ground according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.

Select "Continue" when the fault has been repaired.

Continue - Verification

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Checking short-circuit to supply voltage in signal cable

- Ignition off.
- Combined instrument panel connector A disconnected.
- Control module disconnected.
- Ignition on.
Connect a voltmeter between #6 and #8 on the breakout box.

The voltmeter should read approximately 0 V.

OK - Checking the combined instrument panel

Not OK - Checking for a short-circuit

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Checking for a short-circuit
Check cable between combined instrument panel connector A terminal 3 and control module #6 for a short-circuit to supply voltage according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.

Select "Continue" when the fault has been repaired.

Continue - Checking the combined instrument panel

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Checking the combined instrument panel

- Ignition off.
- Connect control module.
- Connect combined instrument panel.
- Raise car so that front wheels are free of the ground.
- Remove front wheels during the test.
- Engine idling.
- Select a gear so the front wheels start to rotate.

Note! When the rear wheels are stationary and the front wheels rotate, diagnostic trouble codes (DTCs) may be stored in the ABS system. Erase any diagnostic trouble codes (DTCs) stored in the ABS system after fault-tracing.

Check that speedometer is operating correctly.

Note! Ensure that the front wheels are not rotating when the gear selector is moved.

Is the speedometer working?

Yes - Fault cause and checking for contact resistance and oxidation

No - Replacing component

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Fault cause and checking for contact resistance and oxidation
The cause of the diagnostic trouble code (DTC) has been loose connections in control module and combined instrument panel connectors.
Check connectors for contact resistance and oxidation and remedy in accordance with Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.

Select "Continue" when the fault has been repaired.

Continue - FAULT FOUND

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Replacing component
Try a new combined instrument panel.

Select "Continue" when the component has been replaced.

Continue - Verification

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Checking the combined instrument panel

Hint: The combined instrument panel may have been damaged if there has been a short-circuit to supply voltage in its signal cable.

Is the speedometer working?

Yes - Speedometer working

No - Replacing component

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Speedometer working
Combined instrument panel is OK

Select "Continue"

Continue - FAULT FOUND

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Verification

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

Hint: An alternative to the following method is to test drive the car.

- Ignition off.
- Reconnect connectors, reinstall components.
- Raise car so that front wheels are free of the ground.
- Remove front wheels during the test.
- Engine idling.
- Select a gear so the front wheels start to rotate.

Note! When the rear wheels are stationary and the front wheels rotate, diagnostic trouble codes (DTCs) may be stored in the ABS system. Erase any diagnostic trouble codes (DTCs) stored in the ABS system after fault-tracing.

Check that speedometer is operating correctly.

Note! Ensure that the front wheels are not rotating when the gear selector is moved.

Is the speedometer working?

Yes - FAULT FOUND

No - Fault-tracing information

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Fault-tracing information
Information
Attempt New Test - Connecting breakout box and checking ground terminals

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