Code
P1753
DAEWOO
P — Powertrain
R shift pos. indic. lamp
Views:
UK: 14
EN: 40
RU: 25
AI status
Completed
Completed
100%
Causes
- Burnt-out indicator bulb or LED in instrument cluster
- Open or short in lamp wiring or connector
- Poor ground or corroded connector at lamp or module
- Faulty instrument cluster or dash lamp driver
- Faulty transmission range (park/neutral/gear) switch or reverse position sensor
- Blown fuse or power supply fault to the cluster/lamps
Symptoms
- Reverse (R) indicator on dash does not illuminate when transmission is in R
- Reverse indicator stays on continuously or flickers
- No change in indicator when moving into and out of reverse
- Possible related fault codes for PRNDL or range sensor
- In some vehicles, backup lights may be affected if the same switch is used
What to check
- Retrieve freeze frame data and confirm P1753 is current or historic
- Visually inspect instrument cluster, connectors, and wiring for damage or corrosion
- Check related fuses and power supply to instrument cluster/lamps
- Verify reverse lamp behavior in reverse gear (observe dash and backup lights if applicable)
- Measure voltage at the indicator lamp connector with ignition ON and with transmission in R
- Check continuity and ground of the lamp circuit
Signal parameters
- Ignition ON, engine OFF: instrument cluster lamp supply ≈ battery voltage (≈12 V)
- With transmission in R: lamp control output should provide supply/ground to light lamp (driver dependent) or signal to cluster
- Indicator lamp (bulb) typical resistance: a few ohms to tens of ohms (varies by lamp type); LED modules will show higher resistance and different behavior
- Range/switch sensor outputs to TCM/BCM typically 0–5 V or switched ground/high depending on design
- No voltage or stuck voltage when changing gear indicates open, short, or driver failure
Diagnostic algorithm
- Confirm code and note whether it is current or intermittent. Check for related DTCs.
- Verify operator complaint: cycle ignition and move transmission into R, observe dash R lamp and backup lamps (if applicable).
- Inspect fuses and power supply for instrument cluster and related modules. Replace blown fuses if found and retest.
- Visually inspect instrument cluster and wiring harness for damage, corrosion, or loose connectors at the cluster and at the transmission reverse switch.
- With a DVOM, backprobe the indicator lamp connector at the cluster: check for battery voltage on the feed and correct switching signal/ground when in R. If no feed, trace power fuse/relay circuit.
- Check continuity from cluster lamp connector to ground or to the reverse switch as applicable. Repair open/shorts.
- Test or bench-check the cluster lamp (bulb or LED). Replace cluster lamp or cluster assembly if lamp module is dead.
- Verify operation of the transmission reverse/position switch: check switch wiring and signal to the TCM/BCM. Replace switch if it fails to change state when in R.
- If wiring and components test good, test the cluster driver output and the TCM/BCM driver. Replace faulty module if confirmed.
- After repairs, clear codes and perform functional test by cycling through gears and confirming proper indicator behavior and that P1753 does not return.
Likely causes
- Blown bulb or LED failure in cluster
- Disconnected or corroded connector at cluster or reverse switch
- Open circuit in lamp feed or ground wire
- Failed reverse position switch in transmission
- Cluster lamp driver transistor failure
Fault status
Status
P1753 — Reverse shift position indicator lamp circuit malfunction detected. The control module has detected an abnormal signal or circuit condition for the R (Reverse) indicator lamp (open, short, incorrect voltage or driver fault).
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
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