Inspect Ecm Vg Voltage
(a) Start the engine.
(b) Measure the voltage between the terminals of the E4 ECM connector.
HINT:
The transmission gear selector lever should be in the P or N position and the A/C switch should be turned OFF. Standard Voltage
|
Tester Connections |
Conditions |
Specified Conditions |
|
VG (E4-3G) - E2G (E4-2S) |
Engine idling |
G.S to 3.G V |
REPLACE ECM
REPLACE ECM
|
4 |
CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER - ECM) |
Wire Harness Side:
Wire Harness Side:
E2G Front View
E2G Front View
(a) Disconnect the M1 MAF meter connector.
(b) Disconnect the E4 ECM connector.
(c) Check the resistance.
Standard Resistance (Check for open)
|
Tester Connections |
Specified Conditions |
|
VG (M1-3) - VG (E4-30) |
Below 1 Q |
|
E2G (M1-2) - E2G (E4-29) |
Tester Connections
Specified Conditions
Standard Resistance (Check for short)
Tester Connections
Specified Conditions
10 kQ or higher
(d) Reconnect the MAF meter connector.
(e) Reconnect the ECM connector.
REPAIR OR REPLACE HARNESS OR CONNECTOR
REPLACE MASS AIR FLOW METER
Do It Yourself Car Diagnosis
Don't pay hundreds of dollars to find out what is wrong with your car. This book is dedicated to helping the do it yourself home and independent technician understand and use OBD-II technology to diagnose and repair their own vehicles.
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