Mazda B-Series 1997 Workshop Manual page 738

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ELECTRONIC SHIFT TRANSFER CASE
STEP INSPECTION
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24 Key OFF
Dlsconnect transmission select relay
Dlsconnect GEM module connector T-223
Check
GEM
vehicle harness connector pln 17 BRIP wire
for cont~nulty to ground
Is cont~nu~ty present7
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--
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p p
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25 Check power dlstr~but~on box 20A max~fuse R and IP
fuse #27 15A for open fuse
Are fuses open7
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26 Dlsconnect electrical shift relay
Check that reslstance of relay-is 85-140 ohms.
Are relays withln range?
~sconnect transmission select relay
heck clrcult ( 0 ) for contlnulty to a known ground
cont~nu~ty present?
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ansmisslon select relay d~sconnected
Check for battery voltage on clrcu~t (0)
Is battery voltage present7
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W~th transmlssion select relay d~sconnected.
dlsconnect electrlc transfer case connector
Check clrcult ( 0 ) for contrnu~ty between transfer case
relay module and electrlc transfer case connector
clrcult ( 0 )
Is continu~ty present?
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D~sconnect electric shift relay
Key ON
Check clrcurt (BR) for battery voltage
Is battery voltage present?
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~ t h electrlc sh~ft relay disconnected, dlsconnect
lectrlc transfer case connector
heck for contlnurty between electrlc sh~ft relay
onnector clrcu~t (BR) and electrlc transfer case
onnector c~rcult (BR) for open
less than 5 ohms of reslstance present?
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h~ft relay and electric transfer case
check circuit (BR) for cont~nu~ty to a
round
resent?
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ACTION
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Yes
\
Repa~r BRiP wlre circult for short to ground Clear all
DTCs and retest
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No Replace all connectors and retest.
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Yes ( G O to step 18
1
Yes
1
Go to step 24.
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damaged relay.
Clear all DTCs and retest system
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( 0 ) for short to ground
Clear all DTCs and retest system
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( 0 ) for battery short
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Clear all DTCs and retest system.
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N~(.
to step 26
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Yes Go to step 27
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Clear all DTCs and retest system
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Reconnect, clear all DTCs and retest system
No Go to step 28
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Yes Go to step 29.
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1
No Service clrcult (BR) for open
I Reconnect, clear all DTCs and retest system
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Service circuit (BR) for short to ground.
Reconnect, clear all DTCs and retest system
1
No
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Go to step 30.
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33 Disconnect transm~ss~on select relay Serv~ce clrcu~t (Y) for short to ground
Key OFF
Reconnect, clear all DTCs and retest system
Check clrcu~t (Y) for contlnulty to ground
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Is contlnu~ty present?
No Go to step 31
Yes
heck clrcult (Y) for battery voltage
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s
battery voltage present? No
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Yes
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relay clrcult (Y) and electrlc
No
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A_-
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yes
1
Serv~ce clrcult (Y) for battery short.
clear all DTCs and retest system
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Go to step 32
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System OK, clear all DTCs and retest system
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Repair open in circuit (Y).
Clear all DTCs and retest system.
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~ e m o v e GEM T-223 connector.
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Disconnect transfer case motor.
Service circuit (PUIY) for short to ground.
Check circuit (PUIY), T-223 connector pin 21 for
Reconnect all connectors.
continuity to ground.
and retest system.
Is resistance greater than 1 O O k ohms?
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