B1160

DTC B1160

DTC Detecting Condition and Trouble Area






Circuit Diagram










DTC Confirmation Procedure

1) Confirm that ignition mode of keyless push start system is in "OFF".
2) Push engine switch to change ignition mode to "ON".
3) Repeat Step 1) and 2) several times.

DTC Troubleshooting

NOTE:

This DTC might be detected when battery is run down or the voltage is very low.

1. Steering lock unit simply check

Confirm that ignition mode of keyless push start system is in "OFF".
Push engine switch to change ignition mode to "ON".
Repeat Step 1) and 2) several times.
Check that steering lock is locked/unlocked according to change of ignition mode.

Is it in good condition?
YES -
Intermittent trouble.
NO -
Go to Step 2.

2. Steering lock unit power supply circuit check

Push engine switch to change ignition mode to "OFF".
Disconnect steering lock unit connector.
Check for proper terminal connection to steering lock unit connector.
If connections are OK, check that voltage between "A2" circuit terminal and "C1" circuit terminal of steering lock unit connector shows battery voltage instantaneously when ignition mode is switched from "OFF" to "ON".

Is it in good condition?
YES -
Go to Step 5.
NO -
Go to Step 3.

3. Steering lock unit ground circuit check

Check that voltage between "A2" circuit terminal of steering lock unit connector and ground shows battery voltage instantaneously when ignition mode is switched from "OFF" to "ON".

Is it in good condition?
YES -
Repair or replace "C1" circuit.
NO -
Go to Step 4.

4. Steering lock unit power supply circuit check

Push engine switch to change ignition mode to "OFF".
Disconnect "G04" connector.
Check for proper terminal connection to "G04" connector.
If connections are OK, check the following points.
- Resistance of "A2" circuit: less than 3 ohms
- Resistance between "A2" circuit and ground: infinity
- Resistance between "A2" circuit terminal and each terminal at steering lock unit connector: infinity

Are they in good condition?
YES -
Replace keyless start control module and recheck DTC. Service and Repair
NO -
Repair or replace defective wire harness.

5. Steering lock unit signal circuit check

Push engine switch to change ignition mode to "OFF".
Disconnect "G04" connector.
Check for proper terminal connection to "G04" connector.
If connections are OK, check the following points.
- Resistance of "B1" circuit: less than 3 ohms
- Resistance between "B1" circuit and ground: infinity
- Resistance between "B1" circuit terminal and each terminal at steering lock unit connector: infinity

Are they in good condition?
YES -
Go to Step 6.
NO -
Repair or replace defective wire harness.

6. DTC check

Replace steering lock unit. Auto Steering Lock Unit Removal and Installation
Perform DTC Confirmation Procedure
and then recheck DTC.

Is DTC B1160 still detected?
YES -
Replace keyless start control module and recheck DTC. Service and Repair
NO -
End. (Steering lock unit was faulty.)