DTC 22 Discrepancy In Relays (Off)
DTC detecting condition:
Drive does not match between brake vacuum pump relay and brake vacuum pump.
Trouble symptom:
Vacuum pump does not operate properly.
CAUTION:
Use the check board when measuring the ECM terminal voltage and resistance.
Wiring diagram:
Vacuum pump control system Ref. to WIRING SYSTEM>Vacuum Pump Control System>WIRING DIAGRAM .