Component Inspection
INSPECTION1. MASS AIR FLOW METER
a. Output voltage inspection.
1. Apply battery voltage across terminals 3 (+B) and 4 (E2G).
2. Using a voltmeter, connect the positive (+) tester probe to terminal 5 (VG), and negative (-) tester probe to terminal 4 (E2G).
3. Blow air into the MAF meter, and check that the voltage fluctuates.
b. Resistance inspection.
1. Using an ohmmeter, measure the resistance between terminals 2 (THA) and 1 (E2).
Resistance:
12.5 - 16.9 kOhm at -20°C (-4°F)
2.19 - 2.67 kOhm at 20°C (68°F)
0.50 - 0.68 KOhm at 60°C (140°F)
2. THROTTLE W/MOTOR BODY ASSY
a. Disconnect the throttle control motor connector.
b. Using an ohmmeter, measure the motor resistance between terminal M+ and M-.
Motor resistance: 0.3 - 100 Ohm at 20°C (68°F)
3. KNOCK CONTROL SENSOR
a. Continuity inspection.
1. Using an ohmmeter,check that these is no continuity between the terminal and body.
Specified condition: No continuity
4. E.F.I. ENGINE COOLANT TEMPERATURE SENSOR
a. Resistance inspection
1. Using an ohmmeter. measure the resistance between terminals.
Resistance:
Approx. 20°C (68°F) 2.32 - 2.59 kOhm
Approx. 80°C (176°F) 0.310 - 0.326 kOhm
NOTE: In case of checking the water temperature sensor in the water, be careful not to allow water to go into the terminals, and after checking, wipe out the sensor
5. E.F.I. CIRCUIT OPENING RELAY ASSY
a. Continuity inspection
1. Using an ohmmeter, check that there is continuity between each terminal.
2. Using an ohmmeter, check that there is continuity between terminals 3 and 5 when the battery voltage is applied across terminals 1 and 2
Specified condition: Continuity
6. MAIN RELAY
a. Continuity inspection.
1. Using an ohmmeter, check that there is continuity between each terminal
2. Using an ohmmeter, check that there is continuity between terminals 3 and 5 when the battery voltage is applied across terminals 1 and 2
Specified condition: Continuity