Toyota Tundra (2015 year). Manual — part 1508

OK

TESTER CONNECTION

CONDITION

SPECIFIED CONDITION

1C-1 - 1A-4

When no battery voltage applied to terminals 1A-2 and 1A-3 10 kΩ or higher

When battery voltage applied to terminals 1A-2 and 1A-3

Below 1 Ω

NG

REPLACE INTEGRATION RELAY (A/F)

4.

CHECK HARNESS AND CONNECTOR (INTEGRATION RELAY - A/F SENSOR AND
BODY GROUND)

(a) Disconnect the D33 or D34 A/F sensor connector.

(b) Remove the integration relay from the engine room relay block

.

(c) Measure the resistance according to the value(s) in the table below.

Standard resistance:

TESTER CONNECTION

CONDITION

SPECIFIED CONDITION

D33-2 (+B) - 1A-4

Always

Below 1 Ω

D34-2 (+B) - 1A-4

Always

Below 1 Ω

1A-2 - 1B-5

Always

Below 1 Ω

1A-3 - Body ground

Always

Below 1 Ω

D33-2 (+B) or 1A-4 - Body ground

Always

10 kΩ or higher

D34-2 (+B) or 1A-4 - Body ground

Always

10 kΩ or higher

1A-2 or 1B-5 - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

CHECK ECM POWER SOURCE CIRCUIT

5.

CHECK HARNESS AND CONNECTOR (A/F SENSOR - ECM)

(a) Disconnect the D33 or D34 A/F sensor connector.

(b) Disconnect the D74 ECM connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard resistance:

TESTER CONNECTION

CONDITION

SPECIFIED CONDITION

D33-1 (HA1A) - D74-22 (HA1A)

Always

Below 1 Ω

3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0031,P003...

OK

TESTER CONNECTION

CONDITION

SPECIFIED CONDITION

D34-1 (HA2A) - D74-20 (HA2A)

Always

Below 1 Ω

D33-1 (HA1A) or D74-22 (HA1A) - Body ground

Always

10 kΩ or higher

D34-1 (HA2A) or D74-20 (HA2A) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

6.

CHECK WHETHER DTC OUTPUT RECURS

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Clear DTCs

.

(e) Start the engine.

(f) Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving

Pattern.

(g) Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

(h) Read DTCs.

Result

RESULT

PROCEED TO

No DTC is output

A

P0031, P0032, P0051, P0052, P101D or P103D is output

B

B

REPLACE ECM

A

CHECK FOR INTERMITTENT PROBLEMS

3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0031,P003...

Last Modified: 9-16-2014

6.6 C

Doc ID: RM000000PFA0X4X

Model Year: 2015

Model: Tundra

Prod Date Range: [08/2014 - ]

Title: 3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM:

P0037,P0038,P0057,P0058,P0141,P0161,P102D,P105D; Oxygen Sensor Heater Control Circuit Low (Bank 1

Sensor 2); 2015 MY Tundra [08/2014 - ]

DTC

P0037

Oxygen Sensor Heater Control Circuit Low (Bank 1 Sensor 2)

DTC

P0038

Oxygen Sensor Heater Control Circuit High (Bank 1 Sensor 2)

DTC

P0057

Oxygen Sensor Heater Control Circuit Low (Bank 2 Sensor 2)

DTC

P0058

Oxygen Sensor Heater Control Circuit High (Bank 2 Sensor 2)

DTC

P0141

Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)

DTC

P0161

Oxygen Sensor Heater Circuit Malfunction (Bank 2 Sensor 2)

DTC

P102D

O2 Sensor Heater Circuit Performance Bank 1 Sensor 2 Stuck ON

DTC

P105D

O2 Sensor Heater Circuit Performance Bank 2 Sensor 2 Stuck ON

DESCRIPTION

Refer to DTC P0136

.

HINT:

DTC

NO.

DTC DETECTION CONDITION

TROUBLE AREA

P0037

P0057

The heater current is less than the specified value while

the heater is operating.

(1 trip detection logic)

Open in HO2 sensor heater

circuit

HO2 sensor heater (for

Sensor 2)

Integration relay

ECM

P0038

P0058

The heater current is higher than the specified value

while the heater is operating.

(1 trip detection logic)

Short in HO2 sensor heater

circuit

HO2 sensor heater (for

Sensor 2)

Integration relay

ECM

P0141

P0161

The cumulative heater resistance correction value

exceeds the threshold.

(2 trip detection logic)

Open or short in HO2 sensor

heater circuit

HO2 sensor heater (for

Sensor 2)

Integration relay

ECM

P102D

P105D

The heater current is higher than the specified value

while the heater is not operating.

(1 trip detection logic)

ECM

MONITOR DESCRIPTION

3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0037,P003...