Geely Diagnosis Flow. Manual part — 80

317

No. 226 Oil alarm indicator is always on

Malfunction Cause

Solution

Insufficient lubricating oil

Check and eliminate oil leakage and fill lubricating oil
according to specification

Block of lubricating oil tube

Dismantle oil pressure sensor and insert a flat bar to internal
diaphragm of sensor. Open start-up switch, if oil pressure
gauge actuates normally, thus the lubricating oil tube is
blocked;

Oil pressure sensor damaged

Connect terminal of oil pressure sensor to bond strap with
wire, if the oil alarm is normal, then oil pressure sensor is fault
and may be replaced;

Break or short-circuit of connecting
wire for oil pressure alarm indicator

Check the break or short-circuit of connecting wire for oil
pressure alarm indicator with multi-meter and repair it;

Over-low oil pressure

Remove the fault according to diagnosis process in engine
section;

Oil pressure alarm
indicator is always on or
can’t alarm

Internal fault of combined instrument Replace combined instrument

Oil alarm indicator is always on or
can’t alarm

Insufficient lubricating oil

Block of lubricating oil tube

Repair

Oil pressure sensor damaged

Replace

Over-low oil pressure

Break or short-circuit of connecting wire for oil
pressure alarm indicator

Check and repair

Short-circuit of combined
instrument

Replace combined
instrument

Fill lubricating oil

Check and repair

Normal

Normal

Normal

Normal

Normal

Insufficient

Blocked

Blocked

Over-low

Abnormal

Abnormal

318

No. 227 Headlight is always on or not on

Malfunction Cause

Solution

Broken fuse for headlights

Check if fuse is broken and replace it if necessary;

Burn-out of headlight

Replaced burnt headlight

Headlight relay is broken

If fuse is intact, check if headlight relay is poor contact or
burnt off and repair or replace it according to condition.

Broken combined switch for headlight

Check combined switch for headlight; measure
conductivity of switch with multi-meter; if the resistances
are both infinite when switch is placed on either lower
beam or main beam position, thus the switch for headlight
is broken and should be replaced;

Broken harness or poor contact with
bond strap

Check circuits section by section to eliminate short-circuit
or break;

Burnt bulb or poor contact of lamp
holder

If fuse is normal, check if headlight lamp holder is poor
contact or if filament is burnt out and repair or replace it
according to condition.

Internal fault of centralized controller
(CK and MK)

Replace centralized controller

All headlights can’t work;
all headlights is always on
or not on

Failure of light controller (Vision)

Replace light control module;

Broken bulb or poor contact of lamp socket

Headlight is always on or not on

Broken fuse for headlight

Headlight relay is broken

Broken switch for headlight

Broken harness or poor contact with bond
strap

Repair or replace

Replace

Replace

Replace

Repair or replace

Malfunction of centralized controller or
light controller

Replace centralized controller or light
controller

Normal

Normal

Normal

Normal

Normal

Burnt out

Burnt out

Burnt out

Abnormal

Abnormal

Abnormal

319

No. 228 Weak running of starter

Malfunction Cause

Solution

Malfunction of battery

Check if the voltage of battery reaches to 12.5 – 12.9V, if not, charge or replace the battery;

Malfunction of harness

Check the connecting end of starter harness for fine contact, if it's abnormal, the starter harness
should be checked and repaired;

Check if the internal bearing bush of starter is over-worn and thus results in fractional drag
between rotator and stator and subsequent Weak running of starter; then bearing bush or starter
assembly should be replaced;

Measure length of internal brush of starter with vernier caliper; the standard length of brush
should be 15.5 mm and the minimum worn length is 10 mm; if the brush is shorter than the
minimum value, the brush or starter assembly should be replaced;

Check if the no load current of starter is smaller than 90A under 11.5V; if it's abnormal, then
starter assembly should be replaced;

Check the grounding situation of starter commutator; check connection between armature coil
and spindle with Ohm meter; it should be disconnected, if it’s connected, the commutator or
starter should be replaced;

Internal malfunction of
starter

Check if the undercutting depth of commutator should be 0.60 mm and the minimum depth
should be 0.20 mm. if the depth is smaller than the minimum value, then the commutator or
starter assembly should be replaced;

Weak running of
starter

Malfunction of engine

Check if the crankshaft of engine can be rotated or if it’s run heavily, if it’s abnormal to cause
Weak running of starter, the engine should be checked and repaired internally;

Weak running of starter

Voltage of battery

Does starter work normally?

Malfunction of starter harness

Engine works abnormally

Charge or replace battery

Check, repair or replace starter

Repair or replace

Repair or replace

Normal

Normal

Normal

Too low

Abnormal

Bad contact

Abnormal

320

No. 229 Starter can’t work

Malfunction Cause

Solution

Malfunction of
battery

Check if the voltage of battery reaches to 12.5 – 12.9V, if not, recharge or replace the
battery;

Malfunction of
fuse

Check the fuse of starting loop for break and replace fuse if it’s broken;

Malfunction of
starter relay

Check if internal contacts of starter relay is conducting with power on, and replace the
relay if it’s broken;

Malfunction of
harness

Check the harness of starter for short-circuit or poor contact, if it's abnormal, the starter
harness should be checked and repaired;

Check if the coil of electromagnetic switch for starter is OK, and replace the
electromagnetic switch if the coil is broken;

Check the stator coil of starter for break or short-circuit, and replace starter assembly if
the coil is abnormal;

Measure length of internal brush of starter with vernier caliper; the standard length of
brush should be 15.5 mm and the minimum worn length is 10 mm; if the brush is shorter
than the minimum value, the brush or starter assembly should be replaced;

Internal
malfunction of
starter

Check the condition of commutator: 1. Check with Ohm meter if it’s connected between
two commutators, and replace commutators or starter assembly if one of them is
disconnected. 2. Check the grounding situation of starter commutator; check connection
between armature coil and spindle with Ohm meter; it should be disconnected, if it’s
connected, the commutator or starter should be replaced. 3. Check if the undercutting
depth of commutator should be 0.60 mm and the minimum depth should be 0.20 mm. if
the depth is smaller than the minimum value, then the commutator or starter assembly
should be replaced. Check connecting condition of exciting coil: 1. Check with Ohm meter
if it’s connected between conductor and exciting coil brush, and replace starter assembly
if it’s disconnected. 2. Check the grounding condition of exciting coil; it should be
disconnected between end of exciting coil and magnetic pole armature frame measured
by Ohm meter, and replace starter assembly if it’s connected.

Starter can’t work

Internal
malfunction of
engine

Check if the crankshaft of engine can be rotated normally, if it’s blocking or blocked, the
engine should be checked and repaired.