DTC B116A

Precautions: Precautions for Diagnosing Trouble · Precautions for Replacing Remote Controller · Precautions for Remote Controller Disposal · Precautions for Replacing Keyless Start Control Module · Precautions for Control Systems · General safety (00)

DTC Detecting Condition and Trouble Area

DTC detecting condition	Trouble area
B116A: Abnormal Vehicle Speed Pulses From ABS / ESP^® Control Module Vehicle speed signal is not inputted from ESP^® control module.	•Vehicle speed signal circuit •ESP^® control module •Keyless start control module

Circuit Diagram

[A]:	ESP^® control module connector (View: [a])	A1:	Vehicle speed signal circuit	2.	Keyless start control module
[B]:	Keyless start control module connector (View: [b])	1.	ESP^® control module

DTC Confirmation Procedure

WARNING:

If you do not select a suitable route and take proper precautions when performing a road test, an accident can occur.

•Select a level road with no traffic to minimize the risk of accident.
•Perform the test extremely carefully.
•Perform the road test with 2 persons, a driver and a tester.

1)Drive vehicle at 10 km/h (6 mile/h) or more for 1 minute.

DTC Troubleshooting

Step	Action	Yes	No
1	DTC check 1)Check DTC in ESP^® control module. Is there any DTC(s) detected?	Go to troubleshooting for applicable DTC.	Go to Step 2.
2	Vehicle speed signal circuit check 1)Set ignition “OFF”. 2)Disconnect “E08” and “L21” connectors. 3)Check for proper terminal connection to “E08” and “L21” connectors. 4)If connections are OK, check the following points. •Resistance of “A1” circuit: less than 1 Ω •Resistance between “A1” circuit and ground: infinity •Resistance between “A1” circuit terminal and each terminal at “E08” connector: infinity •Voltage of “A1” circuit: approx. 0 V (When ignition is “ON”) Is check result OK?	Go to Step 3.	Repair or replace defective wire harness.
3	Keyless start control module check 1)Set ignition “OFF”. 2)Connect “L21” connector. 3)Set ignition “ON”. 4)Check that voltage between “A1” circuit and ground is approx. 12 V. Is check result OK?	Replace ESP^® control module and recheck DTC.	Replace keyless start control module and recheck DTC.