Mazda CX-7 2007 Workshop Manual page 318

SYMPTOM TROUBLESHOOTING [L3 WITH TC]
STEP INSPECTION
10 Inspect the following wiring harness and
connectors.
With advanced keyless entry system
• Between coil terminal A and keyless CM
terminal 3U
• Between coil terminal B and keyless CM
terminal 3V
Without advanced keyless entry system
• Between coil terminal A and instrument
cluster 2Q
• Between coil terminal B and instrument
cluster 2S
Is there any malfunction (open or short circuit,
terminal corrosion, etc.)?
11 Is there continuity between the keyless CM
harness-side connector terminal 2B and body
ground?
12 Turn the ignition switch to the ON position.
Measure the voltage between keyless CM
harness-side connector terminal 2B and body
ground.
Is the voltage below 1.0V?
13 Turn the ignition switch to the ON position.
(Engine off.)
Measure the voltage between keyless CM
harness-side connector terminal 2A, 2C, 2D and
body ground.
Is the voltage B+?
14 Inspect the following wiring harnesses and
connectors.
• Between keyless CM terminal 3W and PCM
1AI
• Between keyless CM terminal 3X and PCM
1AM
Is there any malfunction (open or short circuit,
terminal corrosion, etc.)?
15 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+?
16 Is there continuity between PCM terminal 1B
and the starter relay with P or N position?
17 Inspect the following:
• Battery connection
• Battery condition
• Fuses
Are all items normal?
18 Is a clicking sound heard from the starter when
the ignition switch is turned to the START
position?
19 Inspect the starting system.
(See01-19-3 STARTER INSPECTION[L3 WITH
TC].)
Is the starting system normal?
20 Do any other electrical accessories work?
21 Inspect adjustment of TR switch.
(See05-17-11 TRANSAXLE RANGE (TR)
SWITCH INSPECTION[AW6A-EL, AW6AX-EL].)
Is TR switch adjusted properly?
01-03–18
2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
RESULTS
Yes Repair or replace malfunctioning part.
No With advanced keyless entry system
Go to the next step.
Without advanced keyless entry system
Go to Step 14.
Yes Go to the next step.
No Repair or replace the wiring harness.
Yes Go to the next step.
No Repair or replace the wiring harness.
Yes Go to the next step.
No Repair or replace the wiring harness.
Yes Repair or replace malfunctioning part.
No Go to the next step.
Yes Go to the next step.
No Repair or replace the wiring harness.
Yes Go to the next step.
No Repair or replace the wiring harness.
Yes Go to the next step.
No Service if necessary.
Repeat Step 1.
Yes Go to the next step.
No Go to Step 20.
Yes Inspect for a seized/hydro-locked engine, flywheel.
No Repair or replace components if necessary required.
Yes Go to the next step.
No Inspect the charging system.
(See01-17-2 BATTERY INSPECTION[L3 WITH TC].)
(See01-17-6 GENERATOR INSPECTION[L3 WITH
TC].)
Yes Go to the next step.
No Perform N position leaning.
If problem remains replace TR switch.
(See05-17-11 TRANSAXLE RANGE (TR) SWITCH
INSPECTION[AW6A-EL, AW6AX-EL].)
Revised 10/2006 (Ref. No. R144/06)
ACTION