Toyota Tundra. Manual — part 1274

Fig. 276: Checking Harness & Connector (Power Source)

OK : Go to next step.

6. INSPECT STARTER

a. Inspect the starter for 1.6 kW type. (See INSPECTION ).

b. Inspect the starter for 2.0 kW type. (See INSPECTION ).

Result

RESULT CHART

B : REPLACE STARTER . (See STARTER (FOR 1.6 KW TYPE) ).

C : REPLACE STARTER (See STARTER (FOR 2.0 KW TYPE) ).

A : REPAIR OR REPLACE HARNESS OR CONNECTOR (STARTER - STARTER RELAY
(ST), BATTERY)

7. CHECK IGNITION SWITCH (POWER SOURCE)

a. Disconnect the J9 ignition switch connector.

b. Measure the voltage according to the value (s) in the table below.

Test Result

Proceed To

OK

A

NG (for 1.6 kW type)

B

NG (for 2.0 kW type)

C

2008 Toyota Tundra

2008 ENGINE PERFORMANCE Engine Control System (1GR-FE) - Tundra

Standard voltage

TESTER CONNECTION SPECIFIED CONDITION

NG : REPAIR OR REPLACE HARNESS OR CONNECTOR (IGNITION SWITCH - BATTERY
POSITIVE TERMINAL)

Fig. 277: Identifying J9 Ignition Switch Connector Terminals

OK : Go to next step.

8. INSPECT IGNITION SWITCH

a. Inspect the ignition switch. (See INSPECTION ).

NG : REPLACE IGNITION SWITCH . (See IGNITION SWITCH ).

OK : Go to next step.

9. CHECK HARNESS AND CONNECTOR (POWER SOURCE)

a. Disconnect the D35 PNP switch connector.

b. Measure the voltage according to the value (s) in the table below.

Standard voltage

TESTER CONNECTION SPECIFIED CONDITION

Tester Connection

Condition Specified Condition

J9-5 (AM2) - Body ground Always

11 to 14 V

Tester Connection

Condition

Specified Condition

D35-4 - Body ground While cranking the engine

11 to 14 V

2008 Toyota Tundra

2008 ENGINE PERFORMANCE Engine Control System (1GR-FE) - Tundra

NG : REPAIR OR REPLACE HARNESS OR CONNECTOR (PNP SWITCH - IGNITION
SWITCH)

Fig. 278: Identifying D35 PNP Switch Connector Terminals

OK : Go to next step.

10. INSPECT PARK/NEUTRAL POSITION SWITCH

a. Disconnect the D35 PNP switch connector.

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

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION

Result

RESULT CHART

B : REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY (See REMOVAL )

Tester Connection

Condition

Specified Condition

4 - 5

Shift lever position P

Below 1 ohms

4 - 5

Shift lever position N

Below 1 ohms

Test Result Proceed To

OK

A

NG

B

2008 Toyota Tundra

2008 ENGINE PERFORMANCE Engine Control System (1GR-FE) - Tundra

Fig. 279: Identifying D35 PNP Switch Connector Terminals

A : REPAIR OR REPLACE HARNESS OR CONNECTOR (PNP SWITCH - ECM)

11. CHECK HARNESS AND CONNECTOR (IGNITION SWITCH - ECM)

a. Disconnect the J9 ignition switch connector.

b. Disconnect the A24 ECM connector.

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

Standard resistance (Check for open)

TESTER CONNECTION SPECIFIED CONDITION

Standard resistance (Check for short)

TESTER CONNECTION SPECIFIED CONDITION

NG : REPAIR OR REPLACE HARNESS OR CONNECTOR

Tester Connection

Condition Specified Condition

J9-7 (ST2) - A24-14 (STSW) Always

Below 1 ohms

Tester Connection

Condition Specified Condition

J9-7 (ST2) or A24-14 (STSW) - Body ground Always

10 kohms or higher

2008 Toyota Tundra

2008 ENGINE PERFORMANCE Engine Control System (1GR-FE) - Tundra