Operation CHARM: Car repair manuals for everyone.

Part 3





2GR-FE ENGINE CONTROL: SFI SYSTEM: P1603,P1605: Engine Stall History


44. READ VALUE USING TECHSTREAM

(a) Change the location of the ignition coil for the cylinder whose Idle Spark Advn Ctrl (#1 to #6) was 4° or more in step 43.

(b) Connect the Techstream to the DLC3.

(c) Turn the ignition switch to ON.

(d) Turn the Techstream on.

(e) Enter the following menus: Powertrain / Engine / Data List / Idle Spark Advn Ctrl (#1 to #6).

Result





HINT
Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.

B -- REPLACE IGNITION COIL ASSEMBLY Removal
A -- Continue to next step.

45. READ FREEZE FRAME DATA

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored Freeze Frame Data.

Result





HINT
* *1: for Automatic air conditioning system
* *2: for Manual air conditioning system
* Try to operate the vehicle under the conditions recorded in the freeze frame data which were present when the malfunction occurred. Confirm the data at this time and the data when the engine is idling (engine warmed up, no load, and shift lever in D or N) and compare these data with the freeze frame data.
* The normal value for the ISC learning amount is engine displacement (liters) x 0.9.
* Even if the results are normal, the power steering system may have been malfunctioning. Continue this inspection procedure until step 48, and if there are no problems with other parts, inspect the power steering system (refer to step 56).

C -- READ FREEZE FRAME DATA

B -- CHECK AIR CONDITIONING SYSTEM (MANUAL AIR CONDITIONING SYSTEM) Air Conditioning System (for Manual Air Conditioning System)

A -- CHECK AIR CONDITIONING SYSTEM (AUTOMATIC AIR CONDITIONING SYSTEM) Air Conditioning System (For Automatic Air Conditioning System)

46. READ FREEZE FRAME DATA

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored Freeze Frame Data.

Result





HINT
* *1: If the Electrical Load Signal display changes from OFF to ON or the "Electric Load Feedback Val" increases, it probably is a malfunction due to a change in electrical load. Check the generator and the continuity and connections between the generator and ECM.
* *2: for 2WD
* *3: for AWD
* The normal value for the ISC learning amount is engine displacement (liters) x 0.9.
* Even if the results are normal, the electrical load signal system and/or the automatic transaxle system may have been malfunctioning. Continue this inspection procedure until step 48, and if there are no problems with other parts, inspect the electrical load system and/or the automatic transaxle system (refer to step 56).

D -- READ FREEZE FRAME DATA

C -- CHECK AUTOMATIC TRANSAXLE SYSTEM (FOR AWD)

B -- CHECK AUTOMATIC TRANSAXLE SYSTEM (FOR 2WD) Symptom Related Diagnostic Procedures

A -- CHECK GENERATOR CIRCUIT Problem Symptoms Table

47. READ FREEZE FRAME DATA

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored Freeze Frame Data.

Result





HINT
* *1: If the Electrical Load Signal display changes from OFF to ON or the "Electric Load Feedback Val" increases, it probably is a malfunction due to a change in electrical load. Check the generator and the continuity and connections between the generator and ECM.
* Even if the results are normal, the electrical load signal system may have been malfunctioning. Continue this inspection procedure until step 48, and if there are no problems with other parts, inspect the electrical load system (refer to step 56).

NG -- READ FREEZE FRAME DATA

OK -- CHECK GENERATOR CIRCUIT Problem Symptoms Table

48. READ FREEZE FRAME DATA

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored Freeze Frame Data.

Result





HINT
* *1: for 2WD
* *2: for AWD
* Even if the results are normal, the park/neutral position switch assembly and/or automatic transaxle system may have been malfunctioning. If there are no problems with other parts, inspect the park/neutral position switch and/or automatic transaxle system (refer to step 56).

D -- REPLACE MALFUNCTIONING PARTS

C -- CHECK AUTOMATIC TRANSAXLE SYSTEM (FOR AWD)

B -- CHECK AUTOMATIC TRANSAXLE SYSTEM (FOR 2WD) Symptom Related Diagnostic Procedures

A -- CHECK PARK/NEUTRAL POSITION SWITCH ASSEMBLY Initial Inspection and Diagnostic Overview

49. READ FREEZE FRAME DATA

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored Freeze Frame Data.

Result





B -- CHECK TERMINAL VOLTAGE (FUEL INJECTOR POWER SOURCE)
A -- Continue to next step.

50. CHECK MASS AIR FLOW METER

(a) Remove the mass air flow meter.

(b) Check for foreign matter in the air flow passage of the mass air flow meter.

Result





HINT
Even if the results are normal, the mass air flow meter may have been malfunctioning. Continue this inspection procedure until step 55, and if there are no problems with other parts, replace the mass air flow meter (refer to step 56).

B -- CHECK TERMINAL VOLTAGE (FUEL INJECTOR POWER SOURCE)

A -- REPLACE MASS AIR FLOW METER Removal

51. CHECK TERMINAL VOLTAGE (FUEL INJECTOR POWER SOURCE)

(a) Disconnect the fuel injector connectors.





(b) Turn the ignition switch to ON.

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

Standard Voltage:





Text in Illustration





HINT
* Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
* Make sure there is not an excessive amount of force applied to the wire harness.
* A rapid decrease in engine speed may have been caused by a malfunction in all or multiple cylinders. (There may be an electrical malfunction in the wiring shared by all the cylinders.)

NG -- CHECK ECM POWER SOURCE CIRCUIT Component Tests and General Diagnostics
OK -- Continue to next step.

52. CHECK TERMINAL VOLTAGE (IGNITION COIL POWER SOURCE)

(a) Disconnect the ignition coil connectors.





(b) Turn the ignition switch to ON.

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

Standard Voltage:





Text in Illustration





HINT
* Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
* Make sure there is not an excessive amount of force applied to the wire harness.
* A rapid decrease in engine speed may have been caused by a malfunction in all or multiple cylinders. (There may be an electrical malfunction in the wiring shared by all the cylinders.)

NG -- CHECK ECM POWER SOURCE CIRCUIT Component Tests and General Diagnostics
OK -- Continue to next step.

53. PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE FUEL PUMP / SPEED)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Engine / Active Test / Control the Fuel Pump/Speed.

(e) Check whether the fuel pump operating sound occurs when performing the Active Test on the Techstream.

OK:





Result





HINT
* Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
* While performing the Active Test, make sure that there is no fuel leakage from the pipes, no signs that fuel has leaked, and no fuel smell.
* If the fuel pump operating noise is abnormal, proceed to step 54.

B -- CHECK FUEL SYSTEM
A -- Continue to next step.

54. INSPECT FUEL SUCTION WITH PUMP AND GAUGE TUBE ASSEMBLY

(a) Disconnect the fuel suction with pump and gauge tube assembly connector.





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

Standard Resistance:





Text in Illustration





NG -- REPLACE FUEL SUCTION WITH PUMP AND GAUGE TUBE ASSEMBLY Removal

OK -- CHECK FUEL PUMP CONTROL SYSTEM Component Tests and General Diagnostics

55. CHECK FUEL SYSTEM

(a) Check for foreign matter such as iron particles around the fuel suction with pump and gauge tube assembly, and for signs that the fuel suction with pump and gauge tube assembly was stuck.

Result





B -- REPLACE MALFUNCTIONING PARTS

A -- REPAIR OR REPLACE FUEL SYSTEM

56. REPLACE MALFUNCTIONING PARTS

(a) If the malfunction could not be identified in steps 3 to 22, replace the part which is suspected to be malfunctioning according to the step where an inspection was performed.





(b) If the malfunction could not be identified in steps 23 to 32, replace the part which is suspected to be malfunctioning according to the step where an inspection was performed.





(c) If the malfunction could not be identified in steps 33 to 40, replace the part which is suspected to be malfunctioning according to the step where an inspection was performed.





(d) If the malfunction could not be identified in steps 41 to 48, inspect and repair the part which is suspected to be malfunctioning according to the step where an inspection was performed.





(e) If the malfunction could not be identified in steps 49 to 55, replace the part which is suspected to be malfunctioning according to the step where an inspection was performed.





HINT
Referring to the chart, inspect and repair or replace the part from the step where an inspection was performed.

NEXT -- Continue to next step.

57. CLEAR DTC

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Clear the DTCs DTC Check / Clear.

NEXT -- Continue to next step.

58. PERFORM CONFIRMATION DRIVING PATTERN

(a) Check if engine stall symptoms are present.

HINT
If any engine stall symptoms are present, recheck for DTCs and freeze frame data and perform an inspection.

NG -- REPAIR OR REPLACE MALFUNCTIONING PARTS

OK -- END