DTC B1632: MTR CONT Signal Error

DTC (Keyless Access Control Unit)

NOTE:  If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A - Refer to: Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode A - Initial Communication and DTC Checks .

1. Problem verification:

   - 1. Turn the vehicle to the ON mode.

   - 2. Clear the DTCs with the HDS.

   - 3. Start the engine.

   - 4. Stop the engine.

   - 5. Check for DTCs with the HDS.

   DTC Description	DTC
   B1632 MTR CONT signal error

   Is DTC B1632 indicated?

   YES 

   Go to step 2 below.

   NO 

   Intermittent failure, the system is OK at this time.

2. Shorted wire check (MTR CONT line):

   - 1. Turn the vehicle to the OFF (LOCK) mode.

   - 2. Disconnect the following connectors.

   Keyless access control unit connector B (36P)

   Electric steering lock 12P connector

   - 3. Turn the vehicle to the ON mode.

   - 4. Measure the voltage between test points 1 and 2.

   Test condition	Vehicle ON mode
   	Keyless access control unit connector B (36P): disconnected
   	Electric steering lock 12P connector: disconnected
   Test point 1	Electric steering lock 12P connector No. 1
   Test point 2	Body ground

   Is there battery voltage?

   YES 

   Repair a short to power in the wire.

   NO 

   Go to step 3 below.

3. Electric steering lock MTR CONT line internal short to power check:

   - 1. Turn the vehicle to the OFF (LOCK) mode.

   - 2. Reconnect the following connector.

   Electric steering lock 12P connector

   - 3. Turn the vehicle to the ON mode.

   - 4. Measure the voltage between test points 1 and 2.

   Test condition	Vehicle ON mode
   	Keyless access control unit connector B (36P): disconnected
   Test point 1	Keyless access control unit connector B (36P) No. 31
   Test point 2	Body ground

   Is there battery voltage?

   YES 

   Replace the electric steering lock.

   NO 

   Replace the keyless access control unit .