Toyota 22R-E - Inspect Resistance of Engine Control Module (ECM); Engine Control Module (ECM) Wiring Connectors Resistance

2. INSPECT RESISTANCE OF ENGINE CONTROL
MODULE (ECM)
NOTICE:
• Do not touch the engine control module (ECM) ter–
minals.
• The tester probe should be inserted into the wiring
connector from the wiring side.
Check the resistance between each terminal of the
wiring connectors.
• Disconnect the connectors from the engine
control module (ECM).
• Measure the resistance at each terminal.
Engine Control Module (ECM) Wiring Connectors Resistance
Throttle valve fully closed
(Throttle opener must be cancelled first)
Throttle valve fully closed
(Throttle opener must be cancelled first)
Engine Control Module (ECM) Terminals
Throttle position sensor connector disconnected
Volume air flow meter connector disconnected
Engine coolant temperature 80C (176F)
Intake air temperature 20C (68F)
Hot (50~100C, 122~212F)
Cold (–10 ~ 50C, 14 ~122F)
Hot (50~100C, 122~212T)
Cold (–10 ~ 50C, 14 ~122F)
Measuring plate fully closed
Measuring plate fully open
Throttle valve fully open
Throttle valve open
Resistance (k)
Terminals
Condition
–ENGINE MFI SYSTEM
EG2–256