Mazda B-Series 1997 Workshop Manual page 611

ELECTRONIC IGNITION SYSTEM
G
DTC: P0351, P0352, P0353, OR P0350lP1352, P1353,
P1364, OR PI365
- -
ACTION
Ignition system OK
Check other system
Go to step 2
Reinstall plugs and leads
Go to step 3
Repair or replace damaged co~nponent
Go to step 4
i
STEP
1
2
3
4
5
6
7
L
P1354, P1360, P1361, P1362,
1NSPECTlON
Note:
3.OL and 4.OL - Follow step 1 through step 24
2.3L -
Follow step
25
through step
58
Check for spark at all high-tension leads while
cranking
When using the timing light, place the grooved
end as close as possible to the plug boot
Very weak or no flashing may be caused by
a fouled plug
Is spark consistent on all high-tension leads
(one spark per crankshaft revolution)?
Check high-tension leads for insulation damage,
looseness, shorting or other damage
Remove and check spark plugs for damage, wear,
carbon deposits and proper plug gap
Examine all wiring harnesses and connectors for
damaged, burned or overheated insulation,
damaged pins, and loose or broken conditions
Check crankshaft position (CKP) sensor shield
connector
Are spark plugs and high-tension leads OK?
- -
Warning:
Never connect
PCM
t o 104 pin breakout box
when performing El diagnostics
Key OFF
Yes
-
No
Yes
No
Yes
Install El diagnostic harness to 60-pin breakout
box and set switch to "416 cylinder" position
Install the coil tee (the tee is blue with
4
pins)
Use El (High data rate) 6 overlay
Key ON, engine OFF
Measure voltage between J5 and J7 at 60 pin
breakout box
Is voltage greater than 10.0 volts?
Key ON, engine OFF
Measure voltage between J3 and J7 at 60 pin
breakout box
Is voltage greater than 10.0 volts?
Key ON, engine OFF
Measure voltage between J6 and J7 at 60 pin
breakout box
Is voltage greater than 10.0 volts?
--- - -
Key ON, engine OFF
Measure voltage between J10 and J7 at 60 pin
breakout box
Is voltage greater than 10.0 volts?
- -
Key ON, engine OFF
Measure voltage between Pin 26 at 104 pin
breakout box and J7 at 60 pin breakout box
Is voltage greater than 10.0 volts?
I
No Check connectors, repair open in coil PWR circuit
Yes Go to step 5
.
- -
-
No
,
Go to step
16
.
Yes
I
Go to step 6
i
. . l - - - _ _ _ _ _
No
Yes
-
No
Yes
No
Go to step 18
- - - A
Go to step
7
- -
Go to step 20
Go to step 8
Check connectors, repair open in coil circuit