← View Generic P1556 Guide
Severity: Medium
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Vehicle-Specific Guide
This guide is customized for your 2021 Honda PASSPORT
P1556: P1556: Transmission Range Sensor Circuit Malfunction
on 2021 Honda PASSPORT
Fix Cost
$200 - $800
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
❌ No
Pro recommended
Your Vehicle
2021 Honda
PASSPORT
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Important for 2021 Honda PASSPORT Owners
Before starting repairs, verify which engine your 2021 Honda PASSPORT has. Check your VIN or engine code to ensure you order the correct parts.
📖 What Does P1556 Mean on 2021 Honda PASSPORT?
The transmission range sensor circuit has malfunctioned, preventing the transmission from shifting properly. This code is specific to Ford vehicles. (Ford)
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Symptoms
- • Difficulty shifting gears
- • slipping transmission
- • hesitation when accelerating
- • transmission warning light on
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Common Causes
- • Faulty transmission range sensor
- • wiring issues
- • transmission control module malfunction
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How to Fix P1556 on 2021 Honda PASSPORT
Replace the transmission range sensor, inspect and repair or replace wiring as needed, update transmission control module software
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Need Maintenance Info for Your PASSPORT?
Get oil capacity, filter specs, and torque settings for your specific 2021 Honda PASSPORT.
View 2021 Honda PASSPORT SpecsParts for 2021 Honda PASSPORT
Essential Tool
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Related Diagnostic Codes
Other codes that may appear with P1556
P1554
Sequential Code
P1554: Transmission Range Sensor Circuit Malfunction
Medium
P1555
Sequential Code
P1555: Transmission Range Sensor Circuit Malfunction
Medium
P1557
Sequential Code
P1557: Transmission Range Sensor Circuit Malfunction
Medium
P1558
Sequential Code
P1558: Transmission Range Sensor Circuit Malfunction
Medium
💡 Why These Codes Are Related:
- • Similar Issues: Same root cause or component failure
- • Related Problems: Often occur together due to system interactions
- • Sequential Codes: Progressive failure stages or multiple sensors
- • Same System: Components within the same automotive system