Overhead Junction Block: Inspection
- INSPECT OVERHEAD JUNCTION BLOCK ASSEMBLY
Disconnect the connector from the overhead J/B and inspect the connector on the wire harness side, as shown.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
OVERHEAD FUNCTION BLOCK ASSY CONTINUITYTester connection Condition Specified condition 1 - Ground Constant Continuity 8 - Ground Constant Battery positive voltage 11 - Ground Ignition switch OFF or ACC No voltage 11 - Ground Ignition switch ON Battery positive voltage If continuity is not as specified, repair or replace the wire harness.
- Overhead J/B side:
INSPECT OVERHEAD JUNCTION BLOCK ASSEMBLY
OVERHEAD J/B CONTINUITYCircuit name Tester connection Specified condition Power source circuit A8 - B6 - E6 Continuity Ground circuit A1 - B2 - E8 - D3 Continuity Microphone circuit B10 - G4 Continuity Microphone circuit B9 - G2 Continuity If continuity is not as specified, replace the overhead J/B assembly.