1994 JEEP WRANGLER relay

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Page 929 of 1770

JEEP WRANGLER 1994  Owners Manual MULTI-PORT FUEL INJECTION (MFI)ÐGENERAL DIAGNOSIS
INDEX
page page
Automatic Shutdown (ASD) Relay Testing...... 43
Camshaft Position Sensor Test.............. 43
Crankshaft Position Sensor Test.......

Page 940 of 1770

JEEP WRANGLER 1994  Owners Manual AUTOMATIC SHUT DOWN (ASD) RELAY TESTING
To perform a complete test of the ASD relay and
its circuitry, refer to the DRB scan tool and appropri-
ate Powertrain Diagnostics Procedures manual. To
test th

Page 941 of 1770

JEEP WRANGLER 1994  Owners Manual harness connector terminal-2 and the sensor connec-
tor terminal. Also test terminal-4 to the sensor con-
nector terminal. Repair the wire harness as
necessary if the resistance is greater than 1 ohm.

Page 942 of 1770

JEEP WRANGLER 1994  Owners Manual EXTENDED IDLE SWITCH TEST
OPTIONAL POLICE PACKAGE ONLY
OPERATION
The extended idle switch is used to raise the en-
gine idle speed to approximately 1000 rpm when the
shifter is in either the Park or N

Page 944 of 1770

JEEP WRANGLER 1994  Owners Manual found, refer to the DRB scan tool and the appropri-
ate Powertrain Diagnostics Procedures service
manual.
RELAYSÐOPERATION/TESTING
OPERATION
The following operations/tests apply to these
relays only:

Page 945 of 1770

JEEP WRANGLER 1994  Owners Manual 87 and 30. Continuity should not be present between
terminals number 87A and 30.
(8) Disconnect jumper wires from relay and 12
Volt power source.
If continuity or resistance tests did not pass, re-
pl

Page 949 of 1770

JEEP WRANGLER 1994  Owners Manual DIAGNOSTIC TROUBLE CODE DESCRIPTIONSÐCONTINUED
Diagnostic
Trouble
CodeDRB Scan Tool
DisplayDescription of Diagnostic Trouble Code
23**..........Intake Air Temp Sensor
Voltage LowIntake air temperatur

Page 950 of 1770

JEEP WRANGLER 1994  Owners Manual DIAGNOSTIC TROUBLE CODE DESCRIPTIONSÐCONTINUED
Diagnostic
Trouble
CodeDRB Scan Tool
DisplayDescription of Diagnostic Trouble Code
41**..........Generator Field Not
Switching ProperlyAn open or shorte
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