Standard Voltage

A113406E02

Tester Connections

Specified Conditions

+B (A4-2) - Body ground

9 to 14 V

(d) Turn the ignition switch to OFF.

(e) Disconnect the E4 ECM connector.

(f) Check the resistance.

Standard Resistance (Check for open)

Tester Connections

Specified Conditions

HA1A (A4-1) - HA1A (E4-1)

Below 1 Q

A1A+ (A4-3) - A1A+ (E4-21)

Below 1 Q

A1A- (A4-4) - A1A- (E4-31)

Below 1 Q

Standard Resistance (Check for open)

Tester Connections

Specified Conditions

HA1A (A4-1) or HA1A (E4-1) - Body ground

10 kQ or higher

A1A+ (A4-3) or A1A+ (E4-21) - Body ground

10 kQ or higher

A1A- (A4-4) or A1A- (E4-31) - Body ground

10 kQ or higher

(g) Reconnect the ECM connector.

(h) Reconnect the A/F sensor connector.

Reference (Bank 1 Sensor 1 System Diagram)

A/F Sensor

From Battery

A/F Sensor

From Battery

A118002E04

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