No.3 Will Not Crank - Mazda 2002 6 Workshop Manual

Diagnostic procedure
STEP INSPECTION
1 Connect WDS or equivalent to DLC-2.
Retrieve any DTC.
Are there DTC displayed?
2 Verify test results.
• If okay, return to diagnostic index to service any additional symptoms.
• If malfunction remains, replace PCM.
End Of Sie

NO.3 WILL NOT CRANK

3 WILL NOT CRANK
DESCRIPTION Starter does not work.
• Open starter circuit between ignition switch and starter
• TR switch malfunction (ATX)
• TR switch misadjustment (ATX)
• Low or dead battery.
• Charging system malfunction.
POSSIBLE CAUSE
• Starter interlock switch malfunction (MTX with starter interlock system).
• Starter malfunction
• Seized/hydrolocked engine, flywheel or drive plate
• Immobilizer system (PATS) and/or circuit malfunction (if equipped).
Diagnostic procedure
STEP INSPECTION
1 Note
• The following test should be perform for
vehicles with immobilizer system. Go to
Step 10 for vehicles without immobilizer
system.
Connect WDS or equivalent to DLC-2.
Do following conditions appear?
• Engine is not completely started.
• DTC B1681 is displayed.
2 Is coil connector securely connected to coil?
3 Does security light illuminate?
4 Connect WDS or equivalent to DLC-2 and
retrieve DTC.
DTC
B1213, B1342, B1600, B1601, B1602, B1681,
B2103, B2431
5 Is there continuity between PCM GND terminals
4X, 2AB, 2AC and GND?
6 Measure voltage between PCM GND terminals
4X, 2AB, 2AC and coil terminal C.
Is the voltage below 1.0?
7 Turn ignition switch ON position.
Access VPWR PID.
Is VPWR PID okay?
Specification
Battery voltage
8 Disconnect coil connector.
Turn ignition switch to ON position.
Is there battery voltage at coil connector terminal
D (harness-side)?
TROUBLESHOOTING
RESULTS
Yes DTC is displayed:
• Go to appropriate DTC test.
No No DTC is displayed:
• Inspect instrument cluster operation.
See Section T.
RESULTS
Yes Both conditions appear:
Go to Step 4.
No Either or other condition appears:
Go to next step.
Yes Go to next step.
No Connect coil connector securely.
Return to Step 1.
Yes Go to next step.
No Inspect instrument cluster and wiring harness.
Yes Go to appropriate DTC test.
No Go to next step.
Yes Go to next step.
No Repair or replace wiring harness.
Yes Go to next step.
No Repair or replace wiring harness.
Yes Go to next step.
No Repair or replace wiring harness.
Yes Inspect for following:
• Open or short circuit between coil terminal A and
PCM terminal 2Q.
• Open or short circuit between coil terminal B and
PCM terminal 2T.
No Repair or replace wiring harness between coil
connector terminal D and fuse panel.
ACTION
A6E398018881W05
ACTION
F–187
F