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Illumination System
Illumination System
120 Step Detect content Solution Judging specification Next step Yes No 7 Check relevant light
Measure voltage between wiring harness connector pin and grounding
Voltage standard value: 11~14 V Whether voltage accord with
Next step
Turn to step 9
8 Check relevant light
Measure resistance between wiring harness connector pin and grounding
Resistance standard value: less Whether resistance accord with
Next step
Check and maintain or replace wiring
9 Check relay output power supply
Measure voltage between relevant wiring harness connector pin and grounding
Voltage standard value: 11~14 V Whether voltage accord with
Next step
Turn to step
10 Check relevant light harness connector pin to relay
Measure resistance between and relay by multimeter
Resistance standard value: less Whether resistance accord with
Next step
Check and maintain or replace wiring
11 Check relay input power supply
Measure voltage between relevant wiring harness connector pin and grounding
Voltage standard value: 11~14 V Whether voltage accord with
Next step
Check and maintain or replace
12 Check whether fault is Turn Light switch to relevant
Whether relevant light is on Fault is removed Next step 13 Check circuit from relevant relay to BCM
Measure resistance between and relay by multimeter
Resistance standard value: less Whether resistance accord with
Next step
Check and maintain or replace wiring
14 Check circuit from light
Measure resistance between
Resistance standard value: less
Next step
Check and maintain or replace wiring
15 Replace light switch, fault is removed
Replace new light switch, turn
Whether light is on
Fault removed
Next step
16 Replace BCM, whether
Turn Light switch to relevant
Whether relevant light is on Fault is removed
Reversing light not working
Step Detect content Solution Judging specification Next step Yes No 1
Confirm fault phenomenon Turn ignition switch to ON, Whether reversing light is on Next step Turn to step 3 |