(6) Two fuel hoses from fuel tubes. Plug the hose end.
26. REMOVE CHARCOAL CANISTER (a) Disconnect the vacuum hose and air hose from thecharcoal canister.
(b) Remove the charcoal canister.
27. DISCONNECT ENGINE WIRE FROM CABIN (a) Remove the two clips, and pull out the instrument panelunder cover.
(b) Remove the four mounting screws.
(c) Disc onnect the connectors, and remove the lower
instrument panel finish panel and glove compartment
door assembly.
(d) Pull out the scuff plate.
EM±124
±
ENGINE MECHANICAL Cylinder Block
WhereEverybodyKnowsYourName
(g) Install the scuff plate.
(h) Connect the connectors.
(i) Install the lower instrument panel finish panel and glovecompartment door assembly with the four screws.
(j) Install the instrument panel under cover with the two clips.
12. INSTALL CHARCOAL CANISTER (a) Install the charcoal canister.
(b) Connect the vacuum hose and air hose to the charcoalcanister.
13. CONNECT HOSES Connect the following hose and ground strap:(1) Heater water hose to water by±pass pipe
(2) Heater water hose to heater water valve
(3) Vacuum hose to brake booster union on air intake
chamber
(4) Vacuum hose (from VSV for heater water valve) to
air intake chamber
(5) Ground strap to bracket on body
±
ENGINE MECHANICAL Cylinder BlockEM±171
WhereEverybodyKnowsYourName
COMPONENTS FOR REMOVAL AND
INSTALLATION
INSPECTION OF ENGINE & ECT ECU
1. DISCONNECT CABLE FROM NEGATIVE TERMINAL OFBATTERY
CAUTION: Work must be started after approx. 20 se-
conds or longer from the time the ignition switch is
turned to the ºLOCKº position and the negative (±) termi-
nal cable is disconnected from the battery.
2. DISCONNECT ENGINE & ECT ECU FROM FLOOR P ANEL
(a) Remove the two clips, and pull out the instrument panel
under cover.
FI±128
EFI SYSTEM
± Electronic Control System (Engine & ECT ECU)
WhereEverybodyKnowsYourName
wDisconnect the SST from the wiring connectors.
SST 09990±01000
4. REINSTALL ENGINE & ECT ECU TO FLOOR PANEL
(a) Connect the two ECU connectors.w Match the male connector correctly with the female
connector, then press them together.
w Tighten the bolt.
Make sure the connector is completely connected, by tight-
ening the bolt until there is a clearance of less than 1 mm
(0.04 in.) between bottom of the male connector and end of
the female connector.
(b) Install the ECU with the bolt.
(c) Install the ECU protector with the two nuts.
(d) Install the floor carpet.
(e) Install the instrument panel under cover with the two clips.
5. RECONNECT CABLE TO NEGATIVE TERMINAL OF BATTERY FI±135
EFI SYSTEM
± Electronic Control System (Engine & ECT ECU)
WhereEverybodyKnowsYourName
DIAGNOSIS SYSTEM
DESCRIPTION
The ECU contains a built±in self±diagnosis system by which
troubles with the engine signal network are detected and a
ºCHECKº engine warning light on the instrument panel lights up.
By analyzing various signals as shown in the later table (See page
TR±14) the Electronic Control Unit (ECU) detects system malfunc-
tions relating to the sensors or actuators.
In the normal mode, the self±diagnosis system monitors 22 (USA
specification vehicles with TRAC control) or 21 (USA (except for
California) and Canadian specification vehicles with TRAC con-
trol) items, indicated by code No. as shown in TR±14. A ºCHECKº
engine warning light informs the driver that a malfunction has been
detected. The light goes off automatically when the malfunction
has been repaired. But the diagnostic code(s) remains stored in
the ECU memory (except for code Nos. 16 and 53). The ECU
stores the code(s) until it is cleared by removing the EFI fuse with
the ignition switch off.
The diagnostic code can be read by the number of blinks of the
ºCHECKº engine warning light when TE1 and E1 terminals on the
TDCL or check connector are connected. When 2 or more codes
are indicated, the lowest number (code) will appear first.
In the test mode, 15 (USA specification vehicles with TRAC con-
trol) or 14 (USA (except for California) and Canadian specification
vehicles with TRAC control) items, indicated by code No. as
shown in TR±14 are monitored. If a malfunction is detected in any
one of the systems indicated by code Nos. 13, 21, 22, 24, 25, 26,
27, 28, 29, 35, 41, 42, 47, 71 and 78 (USA specification vehicles)
or 13, 21, 22, 24, 25, 26, 27, 28, 29, 35, 41, 42, 47 and 78 (USA
(except for California) and Canadian specification vehicles) the
ECU lights the ºCHECKº engine warning light to warn the techni-
cian that malfunction has been detected. In this case, TE2 and E1
terminals on the TDCL should be connected as shown later. (See
page TR±12 ).
In the test mode, even if the malfunction is corrected, the malfunc-
tion code is stored in the ECU memory even when the ignition
switch is off (except code Nos. 43 and 51). This also applies in the
normal mode. The diagnostic mode (normal or test) and the output
of the ºCHECKº engine warning light can be selected by connect-
ing the TE1, TE2 and E1 terminals on the check connector or
TDCL, as shown later.
A test mode function has been added to the functions of the self±
diagnosis system of the normal mode for the purpose of detecting
malfunctions such as poor contact, which are difficult to detect in
the normal mode. This function fills up the selfdiagnosis system.
The test mode can be implemented by the technician following the
appropriate procedures of check terminal connection and opera-
tion described later. (See page TR±12)
TR±10
±
ENGINE TROUBLESHOOTING Diagnosis System
WhereEverybodyKnowsYourName
Wiring and Connector Diagrams
Parts Inspection
(Defogger Switch)
REMOVAL AND INSTALLATION OF AIR
CONDITIONER CONTROL PANEL
ASSEMBLY
(See Instrument Panel on Pub. No. RM260U2, page BO±111)
INSPECTION OF DEFOGGER SWITCH
INSPECT SWITCH OPERATION
(a) Connect the positive (+) lead from the battery to terminal A6and negative (±) lead to terminal A7.
(b) Connect the positive (+) lead from the battery to terminal B10
through a 1.4 W test bulb.
BE±52
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BODY ELECTRICAL SYSTEM Defogger System
WhereEverybodyKnowsYourName
