DTC P0351: Ignition Coil "A" Primary / Secondary Circuit; DTC P0352: Ignition Coil "B" Primary / Secondary Circuit; DTC P0353: Ignition Coil "C" Primary / Secondary Circuit; DTC P0354: Ignition Coil "D" Primary / Secondary Circuit: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Clear the DTCs. Refer to DTC CHECK / CLEAR [07/2013 - ] .
5. Turn the ignition switch off and wait for at least 30 seconds.
6. Shuffle the arrangement of the ignition coils (among No. 1 to No. 4 cylinders).
   NOTE:

   Do not change the location of the connectors.

7. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.
8. Enter the following menus: Powertrain / Engine / Trouble Codes.
9. Read DTCs.
   RESULT
   
   

   Result	Proceed to
   Same DTC output	A
   Different ignition coil DTC output	B

B → See step   5 

A: Go to next step 

1. Disconnect the ignition coil connectors.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2. Turn the ignition switch to ON.
3. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   C38-1 (+B) - Body ground	Ignition switch ON	11 to 14 V
   C28-1 (+B) - Body ground	Ignition switch ON	11 to 14 V
   C39-1 (+B) - Body ground	Ignition switch ON	11 to 14 V
   C27-1 (+B) - Body ground	Ignition switch ON	11 to 14 V

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Ignition Coil)
   *b	No. 1 cylinder
   *c	No. 2 cylinder
   *d	No. 3 cylinder
   *e	No. 4 cylinder

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the ignition coil connectors.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance (Check for open)

   Tester Connection	Condition	Specified Condition
   C38-2 (GND) - Body ground	Always	Below 1 Ω
   C28-2 (GND) - Body ground	Always	Below 1 Ω
   C39-2 (GND) - Body ground	Always	Below 1 Ω
   C27-2 (GND) - Body ground	Always	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the ECM connector.
2. Disconnect the ignition coil connectors.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance (Check for open)

   Tester Connection	Condition	Specified Condition
   A36-21 (IGT1) - C38-3 (IGT1)	Always	Below 1 Ω
   A36-10 (IGT2) - C28-3 (IGT2)	Always	Below 1 Ω
   A36-31 (IGT3) - C39-3 (IGT3)	Always	Below 1 Ω
   A36-8 (IGT4) - C27-3 (IGT4)	Always	Below 1 Ω

   Standard Resistance (Check for short)

   Tester Connection	Condition	Specified Condition
   A36-21 (IGT1) or C38-3 (IGT1) - Body ground	Always	10 kΩ or higher
   A36-10 (IGT2) or C28-3 (IGT2) - Body ground	Always	10 kΩ or higher
   A36-31 (IGT3) or C39-3 (IGT3) - Body ground	Always	10 kΩ or higher
   A36-8 (IGT4) or- C27-3 (IGT4) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   6