B1162

DTC B1162

DTC Detecting Condition and Trouble Area






Circuit Diagram










DTC Confirmation Procedure

1) Set steering wheel in straight-ahead position.
2) Push engine switch to change ignition mode to "OFF".
3) Push engine switch to change ignition mode to "ON".
4) Repeat Step 2) and 3) 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 does lock/unlock 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 the 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 steering lock unit power supply circuits (A1, A2) are as follows.
Circuit voltage between steering lock unit power supply circuit (A1) terminal and steering lock unit ground circuit (C2) terminal of steering lock unit connector shows battery voltage instantaneously when ignition mode is switched from "OFF" to "ON".
Circuit voltage between steering lock unit power supply circuit (A2) terminal and steering lock unit ground circuit (C1) terminal of steering lock unit connector shows battery voltage instantaneously when ignition mode is switched from "OFF" to "ON".
Are they in good condition?
YES
Go to Step 5.
NO
Go to Step 3.
3. Steering lock unit ground circuit check
Check that voltage between "A1", "A2" circuit terminals 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" and "C2" circuits.
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 "A1" and "A2" circuits: less than 3
Resistance between "A1", "A2" circuits and ground: infinity
Resistance between "A1", "A2" circuit terminal and each terminal at steering lock unit connector.
Voltage of "A1" and "A2" circuits: 0 - 1 V (with ignition mode of keyless push start system in "ON")
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. DTC check
Replace steering lock unit. Auto Steering Lock Unit Removal and Installation
Perform DTC Confirmation Procedure
and then recheck DTC.
Is DTC B1162 still detected?
YES
Replace keyless start control module and recheck DTC. Service and Repair
NO
End. (Steering lock unit was faulty.)