DI0SD–16 DTC P1300 Igniter Circuit Malfunction
DI?270
DIAGNOSTICS ? ENGINE (5VZ?FE)
DI0SD?16
DTC
P1300 Igniter Circuit Malfunction
CIRCUIT DESCRIPTION
A Direct Ignition System (DIS) has been adopted. The DIS improves the ignition timing accuracy, reduces high?voltage loss, and enhances the overall reliability of the ignition system by eliminating the distributor. The DIS is a 2?cylinder simultaneous ignition system which ignites 2 cylinders simultaneously with 1 ignition coil. In the 2?cylinder simultaneous ignition system, each of the 2 spark plugs is connected to the end of the secondary winding. High voltage generated in the secondary winding is applied directly to the spark plugs. The sparks of the 2 spark plugs pass simultaneously from the center electrode to the ground electrode. The ECM determines ignition timing end outputs the ignition signals (IGT) for each cylinder. Based on IGT signals, the igniter controls the primary ignition signals (IGC) for all ignition coils. At the same time, the igniter also sends an ignition confirmation signal (IGF) as a fail?safe measure to the ECM.
From Battery Igniter
Camshaft
G
Position
Sensor
IGT1
IGC1
Ignition Coil Spark Plug
No. 1 Cylinder
No. 4 Cylinder
Crankshaft Position Sensor
NE
IGT2 ECM
IGC2
No. 2 Cylinder No. 5 Cylinder
Various Sensor
IGT3
IGC3
IGF
TAC GND To Tachometer
No. 3 Cylinder No. 6 Cylinder
S00251
DTC No. P1300
DTC Detection Condition
Condition (a) is repeated 3 times consecutively during 6 consecutively IGT signals while engine is running: (a) IGF signal is not input to ECM for 2 or more ignitions
Trouble Area
S Ignition system S Open or short in IGF or IGT circuit from igniter to ECM S Igniter S Ignition coil S ECM
2002 TOYOTA TACOMA (RM921U)
WIRING DIAGRAM
DIAGNOSTICS ? ENGINE (5VZ?FE)
B?R 17 IF1
1
IK2
B?R
I3
Ignition Spark
Coil
B?R
Plug GR
B?R Igniter
B?R 6
I14 Ignition Switch
10
I4 Ignition Coil B?R
7 W?R 2
2 1 AM2
G?Y
2 I5 Ignition Coil B?R
R/B No. 2
G 1
2
W Battery
W?B 3
EB
9
B?L 7
LG?R 6
B?W
5
B?Y
4
LG?B
8
To Tachometer
11 E7 IGT1
10 IGT2 E7
9 IGT3 E7 2 IGF E7
ECM
DI?271 5 V
A18392
INSPECTION PROCEDURE
HINT: Read freeze frame data using hand?held tester or OBD II scan tool, as freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the air?fuel ratio was lean or rich, etc. at the time of the malfunction.
1 Check spark plug and spark of misfiring cylinder (See page DI?210).
NG Go to step 4. OK
2 Check for open and short in harness and connector in IGF signal circuit between ECM and igniter (See page IN?28).
2002 TOYOTA TACOMA (RM921U)
NG Repair or replace harness or connector.
DI?272 OK
DIAGNOSTICS ? ENGINE (5VZ?FE)
3 Disconnect igniter connector, and check voltage between terminal IGF of ECM connector and body ground.
IGF (+)
PREPARATION:
(a) Disconnect the igniter connector.
(b) Remove the glove compartment (See page SF?58).
(c) Turn the ignition switch ON.
CHECK:
Measure the voltage between terminal IGF of the ECM connec-
tor and the body ground.
OK:
A18845
Voltage: 4.5 ? 5.5 V
OK Replace igniter.
NG
Check and replace ECM (See page IN?28).
4 Check for open and short in harness and connector in IGT signal circuit between ECM and igniter (See page IN?28).
NG Repair or replace harness or connector. OK
5 Check voltage between terminals IGT1 ? IGT3 of ECM connector and body ground.
IGT2 (+)
IGT1 (+)
IGT3 (+)
PREPARATION: Remove the glove compartment (See page SF?58). CHECK: Measure the voltage between terminal IGT1 ? IGT3 of the ECM connector and body ground when the engine is cranked. OK:
Voltage: More than 0.1 V and less than 4.5 V
2002 TOYOTA TACOMA (RM921U)
A18845
DIAGNOSTICS ? ENGINE (5VZ?FE)
DI?273
IGT and IGF Signal Waveforms VOLT
5 0 5 0 5 0 5 0
20 msec./Division (Idling)
IGT1 IGT2 IGT3 IGF
P20870
Reference: INSPECTION USING OSCILLOSCOPE During idling, check the waveforms between terminals IGT1 ? IGT3 and E1, and IGF and E1 of the ECM connector. HINT: The correct waveforms are as shown.
NG Check and replace ECM (See page IN?28).
OK
6 Disconnect igniter connector, and check voltage between terminals IGT1 ? IGT3 of ECM connector and body ground.
IGT2 (+)
IGT1 (+)
IGT3 (+)
PREPARATION:
(a) Disconnect the igniter connector.
(b) Remove the glove compartment (See page SF?58).
CHECK:
Measure the voltage between terminals IGT1 ? IGT3 of the
ECM connector and the body ground when the engine is
cranked.
OK:
A18845
Voltage: More than 0.1 V and less than 5.0 V
NG Check and replace ECM (See page IN?28).
OK
7 Check voltage between terminal 9 of igniter connector and body ground.
ON START
BE6653 P24329
9 (+) (?)
PREPARATION: Disconnect the igniter connector. CHECK: Measure the voltage between terminal 9 of the igniter connector and the body ground when the ignition switch is turned to ON and START position. OK:
Voltage: 9 ? 14 V
A00124
NG Check and repair igniter power source circuit.
OK
2002 TOYOTA TACOMA (RM921U)
DI?274
DIAGNOSTICS ? ENGINE (5VZ?FE)
8 Check for open and short in harness and connector between ignition switch and ignition coil, and ignition coil and igniter (See page IN?28).
NG Repair or replace harness or connector. OK
9 Check ignition coil (See page IG?1). NG Replace ignition coil.
OK
Replace igniter.
2002 TOYOTA TACOMA (RM921U)
................
................
In order to avoid copyright disputes, this page is only a partial summary.
To fulfill the demand for quickly locating and searching documents.
It is intelligent file search solution for home and business.
Related download
- di0sd 16 dtc p1300 igniter circuit malfunction
- my21 tacoma ebrochure toyota
- 2022 tacoma
- read this important warning sparks toyota
- knocking noise from vacuum pump
- di9tt 01 dtc p0440 evaporative emission control system mal
- 3 4l dohc engine mechanical specifications
- block heater chart toyota read only pure tacoma
- 2005 to 2006 toyota tacoma oem repair manuals
- 1 toyota tacoma electrical wiring diagram
Related searches
- vanguard brokerage services dtc number
- vanguard dtc 0062
- malfunction glucometer icd 10
- malfunction av fistula icd 10
- icd 10 code for malfunction of port
- picc line malfunction icd 10
- malfunction picc line icd 10
- port malfunction icd 10
- picc malfunction icd 10
- icd 10 for malfunction port
- av graft malfunction icd 10
- aicd malfunction icd 10