Operation CHARM: Car repair manuals for everyone.

ABS-213

G. ABS-213,ABS-214 wheel sensor signal

ABS-213 Wheel sensor signal LH rear wheel,incorrect wheel speed
ABS-214 Wheel sensor signal RH rear wheel,incorrect wheel speed

GA. DTC information

Substitute value

If the control module registers that there is no wheel sensor signal when driving is started from a speed under 6 km/h (4 mph) or if the slowest wheel rotates more than 40-60% (depending on the speed of the vehicle) of the fastest wheel but the wheel sensor circuit is still unbroken, DTC ABS-213 or ABS-214 depending on the wheel sensor, will be activated.

Substitute value

- The ABS/TRACS-system is blocked.
- The EBD-system is available.

Possible source

- Loose wheel sensor.
- Defective wheel sensor.
- Defective pulse wheel.
- A wheel is locked when driving.
- Contact resistance in the connections.

Fault symptom(s)

- When the ABS system is blocked,there is a risk of the wheels locking when braking
- The anti-spin system will not work on vehicles equipped with TRACS.

Caution! If the fault becomes intermittent, the ABS warning light will only go out once the speed exceeds 20 km/h (12.5 mph) in the next driving cycle.

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

GB. Other DTCs, status notifications and status checks

[GB1]

Status notification






Is a permanent fault registered ?

Yes: GB2
No: Fault trace as per GD. Incorrect wheel speed. Intermittent fault.

[GB2]

Other DTCs









Select one of the above alternatives to continue

Alternative 1: Fault-trace as per GC. Incorrect wheel speed. Permanent fault.
Alternative 2: GB3

[GB3]

ABS-213 or ABS-214, and ABS-313 or ABS-314 (for the same wheel)

Fault-trace as per KC. Circuit fault. Permanent fault. ABS-313

Then continue with: GB4

[GB4]

Status check






- Ignition on
- Go into running value, list 1

Note the wheel speeds
Test drive the vehicle.
Maintain an even speed without turning

Warning! The ABS and EBD systems are not available while Volvo Diagnostics is activated. Take great care when test driving as there is a serious risk of the wheels locking when braking

Check that the wheel in question has the same speed as the other wheels
Does the wheel in question have the same speed as the other wheels ?

Yes: Fault-trace as per GD. Incorrect wheel speed. Intermittent fault.
No: Fault-trace as per GC. Incorrect wheel speed. Permanent fault.

GC. Incorrect wheel speed. Permanent fault

[GC1]

Connect the test box and check the contact points

Connect test box as per JJJA. Connect the test box Connect the Test Box [JJJ]

Then proceed to: GC2

[GC2]

Check the resistance in the wheel sensor circuit






- Ignition off
- Control module disconnected

Connect an ohmmeter between test box:
#2 and #10 (DTC ABS-213).
#1 and #17 (DTC ABS-214).

The ohmmeter should indicate 1040-1160 ohms

If reading is OK: GC6
If reading is incorrect: GC3

[GC3]

Check the resistance of the wheel sensor






- Ignition off

Connect an en ohmmeter between wheel sensor connector 24/19 connection:
1 and 3 (DTC ABS-213 to the wheel sensor).
2 and 4 (DTC ABS-214 to the wheel sensor).
The ohmmeter should indicate 1040-1160 ohms

If reading is OK: GC4
If reading is incorrect: GC5

[GC4]

Check for contact resistance and oxidation

The fault has been caused by poor contact in the wheel sensor connector
Take appropriate action to wheel sensor connections 24/19, 24/4B and 24/2B for contact resistance and oxidation as per [IIIB5]. Check Communication to Control Module [III]

Then continue with: GC18

[GC5]

Check for cable breaks, short circuiting and replace the component









Check the leads between the wheel sensor and connection 24/19 for breaks as per [IIIB2] and short circuiting to each other as per [IIIB4] Check Communication to Control Module [III]

If the leads are OK test with a new wheel sensor as per LLLLA. Rear wheel sensor, with integrated cabling, replacement.
Sensors and Switches - Brakes and Traction Control - Wheel Speed Sensor - Service and Repair - Procedures Service and Repair

Then continue with: GC18

[GC6]

Check the signal leads






- Ignition off
- Connect the control module
- Ignition on

Connect a voltmeter between test box:
#8 and #10 (DTC ABS-213).
#8 and #17 (DTC ABS-214).
The voltmeter should indicate approx. 2.3 V.

If reading is OK: GC9
If value is lower: GC7
If value Is higher: GC8

[GC7]

Check for short circuiting









Check the cable between wheel sensor connector 24/19 connection
1 and control module #2 (DTC ABS-213)
3 and control module #10 (DTC ABS-213)
2 and control module #1 (DTC ABS-214)
4 and control module #17 (DTC ABS-214)
for short circuiting to ground as per [IIIB3]. Check Communication to Control Module [III]

Then continue with: GC18

[GC8]

Check for short circuiting








Check the cable between wheel sensor connector 24/19 connection:
1 and control module #2 (DTC ABS-213)
3 and control module #10 (DTC ABS-213)
2 and control module #1 (DTC ABS-214)
4 and control module #17 (DTC ABS-214)
for short circuiting to power as per [IIIB4]. Check Communication to Control Module [III]

Then continue with: GC18

[GC9]

Check the wheel bearing






Check that the wheel bearing of the wheel in question does not jam
Is the wheel bearing OK?

Yes: GC11
No: GC10

[GC10]

Action

Take appropriate action for the wheel bearing as needed.
The rear wheel bearings are adjusted

Then continue with: GC18

[GC11]

Check the brakes






Hint: Brakes that jam can lock one or both wheels when driving. This means that there is no wheel sensor signal.

Check that the brake caliper does not jam so that the wheel is locked
Check that neither the hand brake lever, cable nor the brake shoes are jamming in any way.
Check that the brake shoes and cable are correctly adjusted.
Are the brakes OK?

Yes: GC13
No: GC12

[GC12]

Action

Take appropriate action as needed

Then continue with: GC18

[GC13]

Check the wheel sensor






- Ignition off

Note! Do not disconnect the wheel sensor

Check that the wheel sensor is fitted directly against the spindle/hub. There should be no dirt between the sensor and the contact surfaces
Remove the wheel sensor as per [LLLLA]. Rear wheel sensor, with integrated cabling, replacement and check that the wheel sensor point is undamaged.
Sensors and Switches - Brakes and Traction Control - Wheel Speed Sensor - Service and Repair - Procedures Service and Repair

Is the wheel sensor OK ?

Yes: GC15
No: GC14

[GC14]

Take appropriate action and replace the component

Loose wheel sensor is refitted as per [LLLLA]. Rear wheel sensor, with integrated cabling, replacement.
Damaged wheel sensor is replaced as per [LLLLA]. Rear wheel sensor, with integrated cabling, replacement.
Sensors and Switches - Brakes and Traction Control - Wheel Speed Sensor - Service and Repair - Procedures Service and Repair

Then continue with: GC18

[GC15]

Check the pulse wheel






- Remove the wheel, brake caliper and brake disc as per [RRRA]. Brake disc rear, replacement for better access, refer to Brake and Traction Control - Disc Brake System Disc Brake System

Check that the pulse wheel is securely in place, is undamaged (all teeth in place), free from scratches etc.
Is the pulse wheel OK ?

Yes: GC16
No: GC17

[GC16]

Check for contact resistance and oxidation

The fault has been caused by poor contact in the wheel sensor or the control module connector.

Take appropriate action for contact resistance and oxidation to the wheel sensor connections 24/19, 24/4B and 24/2B as per [IIIB5]. Check Communication to Control Module [III]

Then continue with: GC18

[GC17]

Action

Take appropriate action for the pulse wheel as needed

Then continue with: GC18

[GC18]

Verification






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

- Ignition off
- Reconnect the contacts, components etc.
- Ignition on
- Go into running value, list 1

Note the wheel speeds
Test drive the vehicle. Maintain an even speed without turning

Warning! The ABS and EBD Systems are not available while Volvo Diagnostics is activated. Take great care when test driving as there is a serious risk of the wheels locking when braking

Check that the wheel in quesion has the same speed as the other wheels
Has the wheel in question the same speed as the other wheels?

Yes: Fault corrected
No: GC19

[GC19]

Fault-tracing information

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

Yes: Fault not corrected
No: GC1

GD. Incorrect wheel speed Intermittent fault

[GD1]

Check for a locked wheel






A locked wheel when driving means that there will be no wheel sensor signal which can trigger a DTC.
The wheel can be locked by a temporarily jammed wheel bearing, brake caliper or parking brake.

Then continue with: GD2

[GD2]

Check the wheel sensor and pulse wheel






Check that the wheel sensor is fixed securely against the spindle/hub.
Check that the pulse wheel is fixed securely to the hub.

Then continue with: GD3

[GD3]

Check the leads and connections






Check the wheel sensor connections 24/19, 24/4B and 24/2B and the control module connector for contact resistance and oxidation as per [IIIB6]. Check Communication to Control Module [III]

Check the leads between the wheel sensor and control module:
#2 and #10 (DTC ABS-213)
#1 and #17 (DTC ABS-214)
for intermittent breaks as per [IIIB2], intermittent short circuiting to ground as per [IIIB3] and intermittent short circuiting to power as per [IIIB4]. Check Communication to Control Module [III]

Then continue with: GD4

[GD4]

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: GD1
No: Operation done