Engine ECU5-126as to avoid damaging electronic control unit.
(1) Simple measuring method:
(Remove joint) turn digital multimeter to ohm position, connect two meter pens with primary winding pinsrespectively, rated resistance at 2 0°C is 0. 4-0. 6 ohm for 2X2 type; on secondary winding, 11-15k ohm for 2x2 type.13. Electronic control unit ECU
Possible cause
Electric overload of externally connected
device leads to burnout of components inside
ECU and results in malfunction Symptom
Unsteady idle speed, poor speedup, failure to start, too high
idle, tail gas overproof, difficult to start, malfunction of air
conditioner, malfunction of fuel injector control, flameout
Repair precautions:
1. Don't remove ECU at discretion during repair;
2. ECU may be removed more than 1 minute after removing storage battery head;
3. Store removed ECU properly;
4. It is prohibited to attach any circuit onto connecting wire of ECU.
Simple measuring method:
1. (Connect joint) use engine data K-line to read engine trouble record;
2. (Remove joint) check whether ECU connecting wire is in good condition or not, mainly check whether ECU
power supply grounded circuit is normal or not;
3. Check whether external sensor works normally, whether output signal is credible, whether circuit is in good
condition;
4. Check whether actuator works normally, whether its circuit is in good condition;
5. Finally replace ECU to conduct test.
Judgment principle: "two interchange principle" ---interchange ECU, interchange fault symptom.III. Diagnostic system Description:
When engine ECU detects a trouble, engine trouble warning lamp on instrument will illuminate. In addition,
relevant diagnostic code will be recorded in ECU memory. Connect handheld tester with diagnostic interface on
automobile, read various data from automobile ECU. Connect handheld tester with diagnostic interface. Technical
personnel may also read fault code via blinking of instrument fault warning lamp.Engine EFI System-
Engine EFI System
Interior & Exterior Trim and Accessory -Rear Window Glass (with Defrosting Heater Wire)6-211. Remove the assembly of rear seatback; (Refer to "Removal and Installation of Seat")
2. Remove the interior decorative components of vehicle top; (Refer to "Removal and Installation of Interior
Decorative Components of Vehicle Top" )
3.Remove the upper decorative plate at the right-rear enclosure;
(Refer to "Removal and Installation of Interior Decorative Com-
ponents at side enclosure" )
4.Remove the assembly of high-level brake light;
(Refer to "Removal and Installation of Interior Decorative Com-
ponents at side enclosure" )
5. Remove the assembly of trunk shelf;
(Refer to "Removal and Installation of Interior Decorative Com-
ponents at side enclosure" )
6. Remove the exterior seal belt of rear window glass;
(1) Cut apart the seal belt with knife;
Tips:
Do never damage the vehicle body with knife.
(2) Pull off the cut seal belt by hand, and remove it.
7. Remove the rear window glass.
(1) Let the steel wire go through the vehicle body and the glass;
(2) Secure the wire at two ends with wood-block-kind-of objects;
(Tip: attach the protective film to the exterior surface to prevent
scratch)
(3) Pull the steel wire, and cut off the polyester urethane sticking/
sealing materials around the glass;
(4) Remove the stopper;
(5) Remove the glass with the rubber extraction.
Tips:
Separate the glass carefully to prevent scratch on paint or
interior/exterior upholsteries;
Leave as much polyester urethane sticking/sealing materials
as possible on the vehicle body during the removal of glass.
8. Clean the rear windscreen;
(1) Remove the remained stopper, waterproof layer and polyester
urethane sticking/sealing materials with the scraper;
(2) Clean the exterior glass ring with uncontaminated petroleum.
Tips:
Keep off the glass surface after cleaning it.slotslot
cut
cut
stopper
steel wire
1 Engine right insulator x body JQ184C1025(3 pcs)43~58 43~58
2 Brake pedal with bracket assy. x central cross member Q151B0820(1 pcs)22~29 22~29
3Brake pedal with bracket assy. x brake master cylinder
Q32008(4 pcs)22~29 22~29
with vacuum booster assy.
4 Clutch pedal x central cross member Q1840816(1 pcs)/22~29
5 Clutch pedal x clutch master cylinder Q32208(2 pcs)/22~29
6 Accelerator pedal Q32208(2 pcs)22~29 22~29
7 LH/RH front brake pipe component x HECU controller Null13~18 13~18
8 LH/RH rear brake pipe component I x HECU controller Null13~18 13~18
9Brake master cylinder No. 1 and No.2 pipe component
Null13~18 13~18
x HECU controller, brake master cylinder
10Clutch hydraulic hose assy. x master cylinder oil outlet pipe componentNull13~18 13~18
11 Steering column assy. x universal joint assy.Q151B0820TF2(1 pcs)22~29 22~29
12 (LH & RH) front shock absorber component x body37~45 37~45
13 (LH & RH) rear shock absorber component top nut Q341C10(2 pcs) 22~29 22~29
14(LH & RH) front shock absorber piston rod x front
Q330B12(2 pcs)31~38 31~38
suspension bracket sub-assy.
15 (LH & RH) rear seat belt assy. x body7/16" bolt ( )39~53 39~53
16 (LH & RH) front seat belt assy. x body7/16" bolt( )39~53 39~53
17 (LH & RH) front buckle assy. x body7/16" bolt( )39~53 39~53
18 RR seat belt buckle and lap belt assy. x body7/16" bolt( )39~53 39~53
19 LR buckle assy. x body7/16" bolt( )39~53 39~53
20 Rear axle assy. x bodyJQ14012110TF2(2 pcs)73~103 73~103
21 (LH & RH) rear shock absorber x rear axle JQ320B12(2 pcs)47~56 47~56
22LH & RH brake pipe component III x LH & RH rear
Null13~18 13~18
drum brake with wheel hub assy.
23LH & RH rear brake hose x LH & RH rear brake pipe component IIINull13~18 13~18
24 LH/RH rear drum brake with wheel hub assy. x rear axleMounting nut (8pcs)60~72 60~72
25LH/RH rear brake pipe component I x LH/RH rear brake pipe component IINull13~18 13~18Appendix: Torque Table of the Fasteners for Important AssemblyTorque N.m
No.
JL7132HU
JL7152HUJL7132U
JL7152U
JL7162UAppendix-Torque Table of the Fasteners for Important AssemblyIArea Fastener
front suspension
support sub-assy.
Mounting nut (6 pcs)
