Diagnostic procedure
STEP
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INSPECTION
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RESULTS
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ACTION
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1
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Yes
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Inspect the advanced keyless entry system and repair or replace according to the inspection result.
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No
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Go to next step.
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2
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Connect the WDS or equivalent to the DLC-2.
Do any of the following conditions appear?
• Engine does not complete start.
• DTC B1681 is displayed.
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Yes
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Both conditions are appear:
Go to Step 6.
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No
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Either or other condition appears:
Go to the next step.
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3
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Is the coil connector securely connected to the coil?
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Yes
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Go to the next step.
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No
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Connect the connector securely, retest from Step 2.
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4
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Does the security light illuminate?
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Yes
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Go to the next step.
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No
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Inspect and repair or replace the following:
• Wiring harnesses and connectors from PCM terminal 2W and instrument cluster terminal 1G
• Instrument cluster
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5
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Retrieve DTCs using the WDS or equivalent. Are any of the following DTCs present?
DTC B1213, B1342, B1600, B1601, B1602, B1681, B2103, B2431 |
Yes
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Go to the appropriate DTC test.
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No
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Advanced keyless entry system is not equipped:
Go to the next step.
Advanced keyless entry system is equipped:
Go to Step 11.
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6
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Is there continuity between PCM terminal 4X, 2AB, 2AC and ground?
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Yes
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Go to the next step.
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No
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Repair or replace the wiring harness.
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7
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Turn the ignition switch to the ON position (Engine off.)
Measure voltage between PCM terminal 4X, 2AB, 2AC and ground.
Is the voltage below 1.0V?
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Yes
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Go to the next step.
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No
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Repair or replace the wiring harness.
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8
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Turn the ignition switch to the ON position. (Engine off)
Access the VPWR PID.
Is the VPWR PID normal?
VPWR PID Battery voltage |
Yes
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Go to the next step.
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No
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Repair or replace the wiring harness.
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9
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Disconnect the coil connector.
Turn the ignition switch to the ON position. (Engine off)
Is there battery voltage at coil connector terminal D?
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Yes
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Go to the next step.
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No
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Repair or replace the wiring harness between coil connector terminal D and the fuse panel.
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10
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Inspect the following wiring harness and connectors.
• Between coil terminal A and PCM terminal 2Q
• Between coil terminal B and PCM terminal 2T
Is there any malfunction (open or short circuit, terminal corrosion, etc.)?
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Yes
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Repair or replace malfunctioning part.
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11
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Is there continuity between the keyless CM harness-side connector terminal 3C and body ground?
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Yes
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Go to the next step.
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No
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Repair or replace the wiring harness.
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12
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Turn the ignition switch to the ON position.
Measure the voltage between keyless CM harness-side connector terminal 3C and body ground.
Is the voltage below 1.0V?
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Yes
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Go to the next step.
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No
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Repair or replace the wiring harness.
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13
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Turn the ignition switch to the ON position. (Engine off.)
Measure the voltage between keyless CM harness-side connector terminal 3B, 3D, 3I and body ground.
Is the voltage B+?
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Yes
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Go to the next step.
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No
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Repair or replace the wiring harness.
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14
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Turn the ignition switch off.
Disconnect the coil connector.
Turn the ignition switch to the ON position. (Engine off.)
Measure the voltage between coil harness-side connector terminal D and body ground.
Is the voltage B+?
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Yes
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Go to the next step.
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No
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Repair or replace the wiring harness.
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15
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Inspect the following wiring harnesses and connectors.
• Between keyless CM terminal 3Y and coil A
• Between keyless CM terminal 3AA and coil B
• Between keyless CM terminal 4A and PCM 2T
• Between keyless CM terminal 4C and PCM 2Q
Is there any malfunction (open or short circuit, terminal corrosion, etc.)?
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Yes
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Repair or replace malfunctioning part.
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No
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Go to the next step.
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16
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Is there continuity between PCM terminal 4I and the starter relay with the clutch pedal depressed?
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Yes
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Go to the next step.
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No
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Repair or replace the wiring harness.
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17
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Inspect the following:
• Battery connection
• Battery condition
• Fuses
Are all items normal?
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Yes
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Go to the next step.
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No
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Service if necessary.
Repeat Step 1.
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18
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Is a clicking sound heard from the starter when the ignition switch is turned to the START position?
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Yes
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Go to the next step.
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No
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Go to Step 24.
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19
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Inspect the starting system.
Is the starting system normal?
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Yes
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Inspect for a seized/hydro-locked engine, flywheel.
(See FLYWHEEL INSPECTION.)
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No
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Repair or replace components if necessary required.
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20
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Do any other electrical accessories work?
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Yes
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Go to the next step.
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No
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Inspect the charging system.
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21
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Perform the self-test function using the WDS or equivalent.
Turn the ignition switch to the ON position.
Retrieve any DTCs.
Is a DTC displayed?
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Yes
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DTC is displayed:
Go to the appropriate DTC test.
(See DTC TABLE [L3 Turbo].)
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No
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No DTC is displayed:
Inspect the following:
• START circuit in the ignition switch
• Open circuit between ignition switch and starter
• Starter interlock switch
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22
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Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If a malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform the repair or diagnosis.
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