TROUBLE DIAGNOSES — Preliminary Check 5 — Ground Circuit Check
BR-52prose procedureABS C/U has 4 separate ground returns (pins 4/11/12/44) — checking all four catches an open in one of the parallel ground paths that would otherwise be masked.
Preliminary Check 5
GROUND CIRCUIT CHECK
ABS Control Unit
NOTE
• Disconnect connector. Check continuity between control unit connector (Vehicle side) terminal ④, ⑪, ⑫, ㊹ and body ground.
Resistance: 0 Ω.
ABS actuator
NOTE
• Disconnect connector. Check continuity between actuator connector (Vehicle side) terminal ⑭ and body ground.
Resistance: 0 Ω.
ABS motor
NOTE
• Check continuity motor ground circuit.
Resistance: 0 Ω.
ABS Control Unit
Terminals (vehicle-side connector)4, 11, 12, 44
Resistance to body ground0 Ω
ABS Actuator
Terminals (vehicle-side connector)14
Resistance to body ground0 Ω
ABS Motor
Terminals (vehicle-side connector)Motor body-ground harness
Resistance to body ground0 Ω