Lifan 620. Manual — part 42

The use conditions are:

1) Speed is less than 2 km/h;

2) Not connected to fault diagnostic instrument;

3) Wire L (pin 7 in the internal diagnosis interface) is always grounded during diagnosis.

Besides, restore ECU mode of ABS to normal mode (diagnosis mode before) after DTC read.

Method: after diagnosis, disconnect wire L from ground, turn the key to off-power condition, and

connect again.

(2) Method of DTC read without fault diagnostic instrument

Read in the following steps if meeting the conditions of DTC read without fault diagnostic

T1

Symbol of diagnosis start; warning lamp flickers

3.0s

T2

Interval of different DTC

3.0s

T3

Warning lamp flash interval in case of DTC

0.5s

T4

Interval of different digital place of a DTC (the ten’s place

is displayed before the interval and the unit’s place is

after the interval)

1.5s

Take the procedure illustrated in Fig. 3-16 for example. In the display area of the first DTC, as

warning lamp blinks twice (each on and off is T3, 0.5 second) before T4 (1.5 seconds before

warning lamp is turned on), the first mark (ten’s place) of the 2 digital code is 2; as warning lamp

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blinks once after T4 (1.5 seconds after warning lamp is turned off), the second mark of the 2 digital

code (unit’s place) is 1; as then warning lamp is turned off for 3 seconds (T2), the display of the

first DTC is finished, and the DTC is 21. Detailed description of the fault can be found in the DTC

Table of Section 2.4. It is the same with DTC 22.

(3) Deletion of DTC without fault diagnostic instrument

After DTC read and fault elimination according to DTC Table, previous DTC should be deleted

before next DTC check. The conditions of DTC deletion are the same with that of DTC read, as

shown in Fig. 3-17.

symbols are the same with that above.

Fig. 3-18

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4. DTC Table

(1) DTC content is in Table 3-8.

(2) See Table3-9, Table 3-10, Table 3-11, Table 3-12, Table 3-13, Table 3-14 and Table 3-15 for

DTC Table.

Table 3-8

DTC Content

DTC

Content

C1 200

Left front sensor open/short circuit

C1 206

Left rear sensor open/short circuit

C1 201

Left front sensor or gear ring disturbance

C1 207

Left rear sensor or gear ring disturbance

procedure

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Table 3-9 (continued)

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