P1600 on 2011-2016 Honda CR-Z — Loss of Keep Alive Memory (KAM) Power
1 vehicles · 1 makes · $1,000-$3,000 repair
Most Reported On
P1600 is an OBD-II diagnostic trouble code meaning “Loss of Keep Alive Memory (KAM) Power.” This manufacturer-specific code (common on Ford) means the engine computer lost its Keep Alive Memory (KAM) power, the constant battery feed that lets the PCM retain learned data such as fuel trims, idle, and transmission adaptive settings even when the key is off. An open circuit, weak battery, or recently disconnected battery can interrupt this feed and set the code. After it sets, the vehicle may idle or shift oddly until it relearns. It is usually a wiring, ground, or battery issue rather than a failed computer. This code is most commonly reported on 2011-2016 Honda CR-Z, with repair costs ranging from $1,000 to $3,000.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose P1600, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
As an Amazon Associate, we earn from qualifying purchases. Prices are approximate and may vary.
FAQ
What does P1600 mean?
P1600 stands for "Loss of Keep Alive Memory (KAM) Power." This manufacturer-specific code (common on Ford) means the engine computer lost its Keep Alive Memory (KAM) power, the constant battery feed that lets the PCM retain learned data such as fuel trims, idle, and transmission adaptive settings even when the key is off. An open circuit, weak battery, or recently disconnected battery can interrupt this feed and set the code. After it sets, the vehicle may idle or shift oddly until it relearns. It is usually a wiring, ground, or battery issue rather than a failed computer.
What are the most common causes of P1600?
The most common causes of P1600 are: Weak, discharged, or recently disconnected battery, Open or broken KAM power circuit wiring, Corroded or loose battery terminals or ground, Blown fuse feeding KAM power, Poor PCM connector contact, Faulty PCM (less common). The specific cause varies by vehicle.
How much does it cost to fix P1600?
Repair costs for P1600 range from $1,000 to $3,000, depending on the vehicle and root cause.
Which vehicles are affected by P1600?
Au7o has documented P1600 across 1 vehicle models from 1 manufacturers: Honda.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.