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

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