Test
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Work Order Description
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Nominal Value
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T001
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Check: Component
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- Check cable shielding of following component:
B52L Sensor - Wheel Speed, Front, Left
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Test okay?
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T002
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Check: Mechanical Functionality
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- Check the following component for damage and contamination:
B52L Sensor - Wheel Speed, Front, Left
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Mechanical function check okay?
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T003
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Check: Vehicle Configuration
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Is the following information correct for the actual vehicle?
Open & Start
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T004
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Check: Short to Voltage of Signal Circuit
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- Ignition OFF
- Disconnect wiring harness connector from:
A37 Control Unit - Anti-Lock Brake System
- Ignition ON
- Measure voltage between the following terminals:
A37 Control Unit - Anti-Lock Brake System Wiring harness connector (wiring harness side) terminal 8, 9 & Ground
Note:
If the vehicle is equipped with Open & Start, perform the measurement within 15s after Ignition ON.
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less than 0.3 V
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T005
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Check: Short to Ground of Signal Circuit
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- Disconnect wiring harness connector from:
B52L Sensor - Wheel Speed, Front, Left
- Measure resistance between the following terminals:
A37 Control Unit - Anti-Lock Brake System Wiring harness connector (wiring harness side) terminal 8, 9 & Ground
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greater than 500 kOhm
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T006
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Check: Short Circuit in Wiring Harness
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- Measure resistance between the following terminals:
A37 Control Unit - Anti-Lock Brake System Wiring harness connector (wiring harness side) terminal 8 & A37 Control Unit - Anti-Lock Brake System Wiring harness connector (wiring harness side) terminal 9
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greater than 500 kOhm
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T007
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Check: Interruption of Signal Circuit
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- Connect fused jumper wire to:
B52L Sensor - Wheel Speed, Front, Left Wiring harness connector (wiring harness side) terminal 1 & B52L Sensor - Wheel Speed, Front, Left Wiring harness connector (wiring harness side) terminal 2
- Measure resistance between the following terminals:
A37 Control Unit - Anti-Lock Brake System Wiring harness connector (wiring harness side) terminal 8 & A37 Control Unit - Anti-Lock Brake System Wiring harness connector (wiring harness side) terminal 9
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less than 5 Ohm
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T008
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Check: Component
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- Remove fused jumper wire
- Connect wiring harness connector to:
A37 Control Unit - Anti-Lock Brake System
- Ignition ON
- Measure voltage between the following terminals:
B52L Sensor - Wheel Speed, Front, Left Wiring harness connector (wiring harness side) terminal 1 & B52L Sensor - Wheel Speed, Front, Left Wiring harness connector (wiring harness side) terminal 2
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greater than 11 V
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T009
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Check: Component
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- Ignition OFF
- Disconnect wiring harness connector from:
A37 Control Unit - Anti-Lock Brake System
- Connect wiring harness connector to:
B52L Sensor - Wheel Speed, Front, Left
- Connect fused jumper wire to:
A37 Control Unit - Anti-Lock Brake System Wiring harness connector (wiring harness side) terminal 9 & Battery Voltage (Positive Terminal)
- Measure current between the following terminals:
A37 Control Unit - Anti-Lock Brake System Wiring harness connector (wiring harness side) terminal 8 & Ground
- Vehicle jacked-up and front left wheel slowly turned by hand
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The current alternates between ca. 7 mA and ca. 14 mA
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T010
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Check: Short to Voltage of Signal Circuit
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- Ignition OFF
- Disconnect wiring harness connector from:
A37 Control Unit - Anti-Lock Brake System
- Ignition ON
- Measure voltage between the following terminals:
A37 Control Unit - Anti-Lock Brake System Wiring harness connector (wiring harness side) terminal 8, 9 & Ground
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less than 0.3 V
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T011
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Check: Short to Ground of Signal Circuit
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- Ignition OFF
- Disconnect wiring harness connector from:
B52L Sensor - Wheel Speed, Front, Left
- Measure resistance between the following terminals:
A37 Control Unit - Anti-Lock Brake System Wiring harness connector (wiring harness side) terminal 8, 9 & Ground
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greater than 500 kOhm
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