FixVault

Motor Rotor Position Sensor Circuit Inspection (Generator Motor Control Module)

NOTE:  Before testing, check for DTCs. If any DTCs are indicated, troubleshoot the indicated DTCs first.

Determine possible failure area (short in generator motor rotor position sensor circuit, others)

Turn the vehicle to the OFF (LOCK) mode.

-2. Do the 12 volt battery terminal disconnection procedure .

-3. Disconnect the following connector.

PCU 33P connector

At the PCU side, check for continuity between the following test points and body ground individually.

Test condition Vehicle OFF (LOCK) mode
  PCU 33P connector: disconnected
Connector Test circuit Terminal
PCU 33P connector  S1G No. 3
S2G No. 26
S3G No. 14
S4G No. 25
R1G No. 4
R2G No. 15

-5. Disconnect the following connector.

Motor rotor position sensor 12P connector

Check for continuity between the following test points and body ground individually.

Test condition Vehicle OFF (LOCK) mode
  Motor rotor position sensor 12P connector: disconnected
  PCU 33P connector: disconnected
Connector Test circuit Terminal
PCU 33P connector  S1G No. 3
S2G No. 26
S3G No. 14
S4G No. 25
R1G No. 4
R2G No. 15

Open wire check (generator motor rotor position sensor circuit)

Disconnect the following connector.

Motor rotor position sensor 12P connector

Check for continuity between the following terminals respectively.

Test condition Vehicle OFF (LOCK) mode
  PCU 33P connector: disconnected
  Motor rotor position sensor 12P connector: disconnected

S1G line 

Test point 1 PCU 33P connector No. 3 
Test point 2 Motor rotor position sensor 12P connector (female terminals) No. 3:

S2G line 

Test point 1 PCU 33P connector No. 26 
Test point 2 Motor rotor position sensor 12P connector (female terminals) No. 2:

S3G line 

Test point 1 PCU 33P connector No. 14 
Test point 2 Motor rotor position sensor 12P connector (female terminals) No. 9:

S4G line 

Test point 1 PCU 33P connector No. 25 
Test point 2 Motor rotor position sensor 12P connector (female terminals) No. 8:

R1G line 

Test point 1 PCU 33P connector No. 4 
Test point 2 Motor rotor position sensor 12P connector (female terminals) No. 1:

R2G line 

Test point 1 PCU 33P connector No. 15 
Test point 2 Motor rotor position sensor 12P connector (female terminals) No. 7:
GHH384025Courtesy of HONDA, U.S.A., INC.