ABS – Troubleshooting
35B-10
Code No. 71: Acceleration sensor (lateral acceleration)
system
Probable cause
This code is output under either of the following conditions:
D The output from the acceleration sensor (lateral acceleration) becomes 0.5 V or
less, or 4.5 V or more.
D The acceleration sensor (lateral acceleration) harness is open- or short-circuited.
D Defective acceleration sensor (lateral acceleration)
D Defective harness or connector
D Defective ABS-ECU
OK
Check the trouble symptom.
NG
Replace ABS-ECU.
OK
Check the trouble symptom.
NG
Check and repair the harness between
acceleration sensor (lateral accelera-
tion) and ABS-ECU.
OK
Check the trouble symptom.
NG
Check and repair the harness between
general-purpose fuse No. 6 and
acceleration sensor (lateral accelera-
tion).
OK
Replace ABS-ECU.
OK
Check the following connector:
B-24
NG
Repair
OK
Measure at B-24 ABS-ECU connector.
D Connect the connector.
D Ignition switch: ON
D Voltage across 17 and 18
OK: 2.4 – 2.6 V
(horizontal position)
NG
Check the following connectors:
B-24, D-32, B-52
NG
Repair
NG
Check the harness between accelera-
tion sensor (lateral acceleration) and
ABS-ECU.
NG
Repair
OK
Check the trouble symptom.
OK
Check the acceleration sensor (lateral
acceleration). (Refer to P.35B-17.)
NG
Replace
(1) NG
Check the following connectors:
D-32, B-49, B-75
NG
Repair
Check the following connector:
D-32, B-49, B-75
NG
Repair
(2) NG
Measure at D-32 acceleration sensor
(lateral acceleration) connector.
D Disconnect the connector and
measure at the harness side.
D Ignition switch: ON
(1) Voltage across 1 and body ground
OK: Battery voltage
(2) Continuity across 3 and body
ground
OK: Conducting
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