Toyota Tundra (2015 year). Manual — part 1990
A
A
D
GO TO STEP 59
E
GO TO STEP 58
26.
PERFORM SIMULATION TEST
(a) When cranking the engine, check for a noise indicating that the starter pinion gear is extending, and
check that the starter pinion gear is not spinning freely.
PROBLEM SYMPTOM
SUSPECTED AREA
PROCEED
TO
A noise indicating that the starter pinion gear is extending is heard and the
starter pinion gear is not spinning freely.*1
Battery
Excess engine
friction
Starter
A
A noise indicating that the starter pinion gear is extending is heard but the
starter pinion gear is spinning freely.
Drive plate
Starter
B
A noise indicating that the starter pinion gear is extending is not heard
Battery
Starter
Starter system
C
HINT:
*1: The battery may be fully depleted or there may be excess engine friction.
B
GO TO STEP 29
C
GO TO STEP 30
27.
INSPECT BATTERY
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1604; Startabi...
OK
(a) Check the electrolyte quantity.
Standard:
Electrolyte quantity is within the specified range.
(b) Inspect the specific gravity.
1.25 to 1.29 (electrolyte is at 20°C (68°F))
HINT:
If the result is not as specified, recharge or replace the battery.
It is not necessary to inspect a maintenance-free battery.
(c) Inspect the battery voltage.
(1) Turn the ignition switch off and turn on the headlights for 20 to 30 seconds. This will remove the
surface charge from the battery.
(2) Measure the battery voltage.
Standard voltage:
12.5 to 12.9 V (electrolyte is at 20°C (68°F))
HINT:
If the result is not as specified, recharge or replace the battery.
(3) Measure the battery voltage when cranking the engine.
Standard:
Approximately 6 V or higher (0°C (32°F) or higher)
HINT:
When the battery is depleted, the horn becomes quieter.
NG
CHARGE OR REPLACE BATTERY
28.
CHECK ENGINE ASSEMBLY
(a) Check that the crankshaft rotates smoothly when rotating it by hand.
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1604; Startabi...
OK:
Crankshaft rotates smoothly.
HINT:
.
NG
REPAIR OR REPLACE ENGINE ASSEMBLY
OK
INSPECT STARTER
29.
CHECK STARTER
(a) Remove the starter (for 1.6 kW type)
.
(b) Remove the starter (for 2.0 kW type)
.
(c) Check for starter pinion gear wear and damage.
Standard:
There is no wear or damage.
NG
REPLACE STARTER
OK
REPLACE DRIVE PLATE AND RING GEAR
30.
INSPECT BATTERY
(a) Check the electrolyte quantity.
Standard:
Electrolyte quantity is within the specified range.
(b) Inspect the specific gravity.
1.25 to 1.29 (electrolyte is at 20°C (68°F))
HINT:
If the result is not as specified, recharge or replace the battery.
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1604; Startabi...
OK
It is not necessary to inspect a maintenance-free battery.
(c) Inspect the battery voltage.
(1) Turn the ignition switch off and turn on the headlights for 20 to 30 seconds. This will remove the
surface charge from the battery.
(2) Measure the battery voltage.
Standard voltage:
12.5 to 12.9 V (electrolyte is at 20°C (68°F))
HINT:
If the result is not as specified, recharge or replace the battery.
(3) Measure the battery voltage when cranking the engine.
Standard:
Approximately 6 V or higher (0°C (32°F) or higher)
HINT:
When the battery is depleted, the horn becomes quieter.
NG
CHARGE OR REPLACE BATTERY
31.
INSPECT STARTER
(a) Inspect the starter (for 1.6 kW type)
.
(b) Inspect the starter (for 2.0 kW type)
.
NG
REPLACE STARTER
OK
CHECK STARTER SIGNAL CIRCUIT
32.
PERFORM SIMULATION TEST
(a) Check the cranking speed.
PROBLEM SYMPTOM
SUSPECTED AREA
PROCEED TO
Cranking speed is slow (100 rpm or less)
Battery
Starter
Excess engine friction
A
Cranking speed is fast (300 rpm or more)*1
Engine compression loss
B
HINT:
*1: If the cranking speed is fast, there may be compression loss.
Perform "Inspection After Repair" after replacing the engine assembly
.
B
CHECK AND REPAIR ENGINE
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1604; Startabi...
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