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Diagnostic procedure

DIAGNOSTIC PROCEDURE DESCRIPTION

STEP INSPECTION RESULTS ACTION
1 Note: 
  • The following test should be performed for vehicles with immobilizer system. Go to Step 8 for vehicles without immobilizer system.

Connect the WDS or equivalent to the DLC-2
Do the following conditions appear?
  • The engine is not completely started.
  • DTC P1260 is displayed.
 Yes Both conditions appear: 
Go to Step 4.
No Either or other condition appears: 
Go to the next step.
2 Turn the ignition switch to the ON position
Is the coil connector securely connected to the coil?		 Yes Go to the next step.
No Connect the coil connector securely
Return to Step 1.
3 Does the security light flush? Yes Go to the next step.
No Inspect instrument cluster and wiring harness
(See INSTRUMENT CLUSTER INSPECTION .)
4 Connect the WDS or equivalent to the DLC-2 and retrieve
DTC. 
DTC B1213, B2139, B2141, B1600, B1601, B1602, B1681, B2103, B2431, U2510 		 Yes Go to appropriate DTC inspection
(See DTC TABLE .)
No Go to the next step.
5 Inspect for the following wiring harnesses and connectors:
  • Between coil terminal A and instrument cluster terminal 2Q
  • Between coil terminal B and instrument cluster terminal 2S

    Is there any malfunction?

 Yes Repair or replace suspected wiring harness and connector.
No Go to the next step.
6 Inspect for the following wiring harnesses and connectors:
  • Between PCM terminal 1Al and instrument cluster terminal 1I
  • Between PCM terminal 1AM and instrument cluster terminal 1K

Is there any malfunction?		 Yes Repair or replace suspected wiring harness and connector.
No Go to the next step.
7 Is there continuity between PCM terminal 1AB and starter relay with clutch pedal depressed (MTX with starter interlock system), P or N position (ATX)? Yes Go to the next step.
No Repair or replace wiring harness.
8 Inspect the following:
  • Battery connection
  • Battery condition
  • Transaxle is in Park or Neutral. (ATX)
  • Clutch is fully depressed. (MTX)

Fuses Are all items normal?		 Yes Go to the next step.
No Service if necessary
Repeat Step 8.
9 Is clicking sound heard from starter when the ignition switch is turned to START? Yes Go to the next step.
No Go to Step 11.
10 Inspect the starting system
(See STARTER INSPECTION .)
Is starting system normal?		 Yes Inspect for seized/hydrolocked engine, flywheel or drive plate
(See FLYWHEEL INSPECTION .)
No Repair or replace components if required.
11 Do any other electrical accessories function? Yes Go to the next step.
No Inspect the charging system
(See BATTERY INSPECTION .)
(See GENERATOR INSPECTION .)
12
NOTE:
  • The following test should be performed on ATX only. For MTX, go to the next step.
Connect the WDS or equivalent to the DLC-2. Access TR PIDTurn the ignition switch to the ON positionIs TR PID indicated P/N when selecting P or N position?		 Yes Go to the next step.
No Inspect adjustment of TR switch
If TR switch is adjusted properly, inspect for open circuit between TR switch and PCM terminal 1W or starter.
13 Connect the WDS or equivalent to the DLC-2
Turn the ignition switch to the ON position (Engine off)
Retrieve any DTCs
Are there any DTCs displayed?		 Yes DTC is displayed: 
Go to appropriate DTC inspection
(See DTC TABLE .)
Communication error message is displayed: 
Inspect for the following:
  • Open circuit in wiring harness between main relay and PCM terminal 1BE or 1A (ATX)
  • Open circuit in wiring harness between main relay terminal E and PCM terminal 1AT
  • Main relay is stuck open.
  • Open or short circuit in wiring harness between DLC and PCM terminals 1AM or 1Al
  • Open or poor GND circuit (PCM terminal 1AZ, 1BB, 1BC(2) 1BD, 1BG, 1BH, 2BB(1) or 2BC(1))
  • Poor connection of vehicle body GND
No No DTC is displayed: 
Inspect the following:
  • START circuit in ignition switch
  • Open circuit in wiring harness between ignition switch and starter
  • Starter interlock switch (MTX)
14 Verify test results.
  • If normal, return to diagnostic index to service any additional symptoms

    (See ENGINE SYMPTOM TROUBLESHOOTING )

  • If malfunction remains, inspect related Technical Service Bulletin(s) Repair Information and perform repair or diagnosis.
    • If vehicle is repaired, troubleshooting completed.
    • If vehicle is not repaired or additional diagnostic information is not available, replace the PCM

      (See PCM REMOVAL/INSTALLATION .)
(1) California emission regulation applicable model
(2) Except for California emission regulation applicable model
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